{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-101003", "tracking": { "current_release_date": "2026-10-21T08:47:28.396113Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-101003", "initial_release_date": "2026-09-27T11:35:10.744930Z", "revision_history": [ { "date": "2026-09-27T11:35:10.744930Z", "number": "1", "summary": "NCSC Score created." }, { "date": "2026-09-28T06:28:43.059446Z", "number": "2", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (7).| CWES updated (1)." }, { "date": "2026-09-28T06:28:53.073934Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-09-28T12:30:49.981005Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (9).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-09-28T12:30:53.667562Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-09-28T12:39:54.585497Z", "number": "6", "summary": "CVSS created.| CWES created (2).| Products created (24).| References created (7).| Description created for source.| Unknown change.| Product Identifiers created (1)." }, { "date": "2026-09-28T12:39:56.125284Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-09-29T06:41:39.078298Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (22).| References created (9).| CWES updated (1)." }, { "date": "2026-09-29T16:13:00.190687Z", "number": "9", "summary": "EPSS created.| Unknown change." }, { "date": "2026-09-29T16:13:08.979925Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-09-30T12:47:34.889672Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| Description created for source." }, { "date": "2026-09-30T12:47:36.768449Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-10-02T23:51:02.888603Z", "number": "13", "summary": "Unknown change." }, { "date": "2026-10-02T23:51:07.887481Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-10-13T06:27:48.284544Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-10-20T18:23:57.266215Z", "number": "16", "summary": "Products created (35)." }, { "date": "2026-10-21T08:47:22.064800Z", "number": "17", "summary": "Products removed (35)." } ], "status": "interim", "version": "17" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/3.2", "product": { "name": "vers:unknown/3.2", "product_id": "CSAFPID-421909" } }, { "category": "product_version_range", "name": "vers:unknown/3.3", "product": { "name": "vers:unknown/3.3", "product_id": "CSAFPID-421895" } }, { "category": "product_version_range", "name": "vers:unknown/3.4", "product": { "name": "vers:unknown/3.4", "product_id": "CSAFPID-421907" } }, { "category": "product_version_range", "name": "vers:unknown/3.5", "product": { "name": "vers:unknown/3.5", "product_id": "CSAFPID-421912" } }, { "category": "product_version_range", "name": "vers:unknown/3.6", "product": { "name": "vers:unknown/3.6", "product_id": "CSAFPID-421902" } }, { "category": "product_version_range", "name": "vers:unknown/3.7", "product": { "name": "vers:unknown/3.7", "product_id": "CSAFPID-421913" } }, { "category": "product_version_range", "name": "vers:unknown/3.8", "product": { "name": "vers:unknown/3.8", "product_id": "CSAFPID-421892" } }, { "category": "product_version_range", "name": "vers:unknown/4.0", "product": { "name": "vers:unknown/4.0", "product_id": "CSAFPID-421903" } }, { "category": "product_version_range", "name": "vers:unknown/4.1", "product": { "name": "vers:unknown/4.1", "product_id": "CSAFPID-421917" } }, { "category": "product_version_range", "name": "vers:unknown/5.0", "product": { "name": "vers:unknown/5.0", "product_id": "CSAFPID-421897" } }, { "category": "product_version_range", "name": "vers:unknown/5.1", "product": { "name": "vers:unknown/5.1", "product_id": "CSAFPID-421908" } }, { "category": "product_version_range", "name": "vers:unknown/5.2", "product": { "name": "vers:unknown/5.2", "product_id": "CSAFPID-421910" } }, { "category": "product_version_range", "name": "vers:unknown/5.3", "product": { "name": "vers:unknown/5.3", "product_id": "CSAFPID-421900" } }, { "category": "product_version_range", "name": "vers:unknown/5.4", "product": { "name": "vers:unknown/5.4", "product_id": "CSAFPID-421918" } }, { "category": "product_version_range", "name": "vers:unknown/5.5", "product": { "name": "vers:unknown/5.5", "product_id": "CSAFPID-421896" } }, { "category": "product_version_range", "name": "vers:unknown/5.5_20140120", "product": { "name": "vers:unknown/5.5_20140120", "product_id": "CSAFPID-3353204" } }, { "category": "product_version_range", "name": "vers:unknown/5.6", "product": { "name": "vers:unknown/5.6", "product_id": "CSAFPID-421905" } }, { "category": "product_version_range", "name": "vers:unknown/6.0", "product": { "name": "vers:unknown/6.0", "product_id": "CSAFPID-421914" } }, { "category": "product_version_range", "name": "vers:unknown/6.1", "product": { "name": "vers:unknown/6.1", "product_id": "CSAFPID-421893" } }, { "category": "product_version_range", "name": "vers:unknown/6.10", "product": { "name": "vers:unknown/6.10", "product_id": "CSAFPID-421899" } }, { "category": "product_version_range", "name": "vers:unknown/6.11", "product": { "name": "vers:unknown/6.11", "product_id": "CSAFPID-392814" } }, { "category": "product_version_range", "name": "vers:unknown/6.12", "product": { "name": "vers:unknown/6.12", "product_id": "CSAFPID-421894" } }, { "category": "product_version_range", "name": "vers:unknown/6.13", "product": { "name": "vers:unknown/6.13", "product_id": "CSAFPID-415125" } }, { "category": "product_version_range", "name": "vers:unknown/6.14", "product": { "name": "vers:unknown/6.14", "product_id": "CSAFPID-471551" } }, { "category": "product_version_range", "name": "vers:unknown/6.15", "product": { "name": "vers:unknown/6.15", "product_id": "CSAFPID-473362" } }, { "category": "product_version_range", "name": "vers:unknown/6.16", "product": { "name": "vers:unknown/6.16", "product_id": "CSAFPID-504709" } }, { "category": "product_version_range", "name": "vers:unknown/6.17", "product": { "name": "vers:unknown/6.17", "product_id": "CSAFPID-667641" } }, { "category": "product_version_range", "name": "vers:unknown/6.18", "product": { "name": "vers:unknown/6.18", "product_id": "CSAFPID-572813" } }, { "category": "product_version_range", "name": "vers:unknown/6.2", "product": { "name": "vers:unknown/6.2", "product_id": "CSAFPID-421906" } }, { "category": "product_version_range", "name": "vers:unknown/6.3", "product": { "name": "vers:unknown/6.3", "product_id": "CSAFPID-421898" } }, { "category": "product_version_range", "name": "vers:unknown/6.4", "product": { "name": "vers:unknown/6.4", "product_id": "CSAFPID-421901" } }, { "category": "product_version_range", "name": "vers:unknown/6.5", "product": { "name": "vers:unknown/6.5", "product_id": "CSAFPID-421911" } }, { "category": "product_version_range", "name": "vers:unknown/6.6", "product": { "name": "vers:unknown/6.6", "product_id": "CSAFPID-421904" } }, { "category": "product_version_range", "name": "vers:unknown/6.7", "product": { "name": "vers:unknown/6.7", "product_id": "CSAFPID-421916" } }, { "category": "product_version_range", "name": "vers:unknown/6.9", "product": { "name": "vers:unknown/6.9", "product_id": "CSAFPID-421915" } }, { "category": "product_version_range", "name": "vers:unknown/7.0", "product": { "name": "vers:unknown/7.0", "product_id": "CSAFPID-667640" } }, { "category": "product_version_range", "name": "vers:unknown/7.1", "product": { "name": "vers:unknown/7.1", "product_id": "CSAFPID-791230" } }, { "category": "product_version_range", "name": "vers:unknown/7.10", "product": { "name": "vers:unknown/7.10", "product_id": "CSAFPID-935970" } }, { "category": "product_version_range", "name": "vers:unknown/7.11", "product": { "name": "vers:unknown/7.11", "product_id": "CSAFPID-1339034" } }, { "category": "product_version_range", "name": "vers:unknown/7.12", "product": { "name": "vers:unknown/7.12", "product_id": "CSAFPID-1751090" } }, { "category": "product_version_range", "name": "vers:unknown/7.13", "product": { "name": "vers:unknown/7.13", "product_id": "CSAFPID-1751091" } }, { "category": "product_version_range", "name": "vers:unknown/7.14", "product": { "name": "vers:unknown/7.14", "product_id": "CSAFPID-1751092" } }, { "category": "product_version_range", "name": "vers:unknown/7.15", "product": { "name": "vers:unknown/7.15", "product_id": "CSAFPID-5109608" } }, { "category": "product_version_range", "name": "vers:unknown/7.16", "product": { "name": "vers:unknown/7.16", "product_id": "CSAFPID-5109609" } }, { "category": "product_version_range", "name": "vers:unknown/7.17", "product": { "name": "vers:unknown/7.17", "product_id": "CSAFPID-5109610" } }, { "category": "product_version_range", "name": "vers:unknown/7.18", "product": { "name": "vers:unknown/7.18", "product_id": "CSAFPID-5662504" } }, { "category": "product_version_range", "name": "vers:unknown/7.19", "product": { "name": "vers:unknown/7.19", "product_id": "CSAFPID-5662505" } }, { "category": "product_version_range", "name": "vers:unknown/7.2", "product": { "name": "vers:unknown/7.2", "product_id": "CSAFPID-1139351" } }, { "category": "product_version_range", "name": "vers:unknown/7.20", "product": { "name": "vers:unknown/7.20", "product_id": "CSAFPID-5662506" } }, { "category": "product_version_range", "name": "vers:unknown/7.21", "product": { "name": "vers:unknown/7.21", "product_id": "CSAFPID-5983822" } }, { "category": "product_version_range", "name": "vers:unknown/7.22", "product": { "name": "vers:unknown/7.22", "product_id": "CSAFPID-8624830" } }, { "category": "product_version_range", "name": "vers:unknown/7.3", "product": { "name": "vers:unknown/7.3", "product_id": "CSAFPID-1139352" } }, { "category": "product_version_range", "name": "vers:unknown/7.4", "product": { "name": "vers:unknown/7.4", "product_id": "CSAFPID-1139348" } }, { "category": "product_version_range", "name": "vers:unknown/7.5", "product": { "name": "vers:unknown/7.5", "product_id": "CSAFPID-1139354" } }, { "category": "product_version_range", "name": "vers:unknown/7.6", "product": { "name": "vers:unknown/7.6", "product_id": "CSAFPID-1139350" } }, { "category": "product_version_range", "name": "vers:unknown/7.7", "product": { "name": "vers:unknown/7.7", "product_id": "CSAFPID-1139349" } }, { "category": "product_version_range", "name": "vers:unknown/7.8", "product": { "name": "vers:unknown/7.8", "product_id": "CSAFPID-1139353" } }, { "category": "product_version_range", "name": "vers:unknown/7.9", "product": { "name": "vers:unknown/7.9", "product_id": "CSAFPID-1139347" } } ], "category": "product_name", "name": "Mongoose" } ], "category": "vendor", "name": "Cesanta" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-101003", "cwe": { "id": "CWE-121", "name": "Stack-based Buffer Overflow" }, "notes": [ { "category": "description", "text": "A flaw was found in Mongoose. A remote attacker can trigger a stack-based buffer overflow by sending specially crafted network messages to the MQTT broker component. This flaw could lead to a Denial of Service (DoS) condition by crashing the application.\nThis vulnerability is evaluated as having Moderate impact for Red Hat because, although triggered remotely over network inputs without authentication, the scope of impact is limited to a denial of service crash and targets demonstration code rather than core platform functionality. The flawed broker logic resides within upstream tutorial files that are not deployed or enabled in supported Red Hat products. Any potential risk is confined to specialized community builds where this standalone server example is explicitly compiled and exposed to untrusted traffic.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-101003" }, { "category": "description", "text": "A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/mqtt-server/main.c of the component MQTT Broker. Executing a manipulation can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.22 addresses this issue. This patch is called a9df523f76f43a38bd53b4232b9cfd4c16869e71. Upgrading the affected component is advised.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-101003" }, { "category": "description", "text": "A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/mqtt-server/main.c of the component MQTT Broker. Executing a manipulation can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.22 addresses this issue. This patch is called a9df523f76f43a38bd53b4232b9cfd4c16869e71. Upgrading the affected component is advised.", "title": "osvgit - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101003.json?alt=media" }, { "category": "description", "text": "A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/mqtt-server/main.c of the component MQTT Broker. Executing a manipulation can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.22 addresses this issue. This patch is called a9df523f76f43a38bd53b4232b9cfd4c16869e71. Upgrading the affected component is advised.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-101003" }, { "category": "description", "text": "A weakness has been identified in Cesanta Mongoose up to 7.21. Affected by this vulnerability is the function fn of the file tutorials/mqtt/mqtt-server/main.c of the component MQTT Broker. Executing a manipulation can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.22 addresses this issue. This patch is called a9df523f76f43a38bd53b4232b9cfd4c16869e71. Upgrading the affected component is advised.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-101003" }, { "category": "other", "text": "0.00462", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "title": "CVSSV4" }, { "category": "other", "text": "5.5", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.9", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Cveprojectv5, There is cvss data available from source Redhat", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to (a version of) an uncommon product, There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-667640", "CSAFPID-791230", "CSAFPID-935970", "CSAFPID-1339034", "CSAFPID-1751090", "CSAFPID-1751091", "CSAFPID-1751092", "CSAFPID-5109608", "CSAFPID-5109609", "CSAFPID-5109610", "CSAFPID-5662504", "CSAFPID-5662505", "CSAFPID-1139351", "CSAFPID-5662506", "CSAFPID-5983822", "CSAFPID-1139352", "CSAFPID-1139348", "CSAFPID-1139354", "CSAFPID-1139350", "CSAFPID-1139349", "CSAFPID-1139353", "CSAFPID-1139347" ], "known_not_affected": [ "CSAFPID-8624830" ] }, "references": [ { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-101003.json?alt=media" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-101003" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101003" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-101003" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-101003" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-101003" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/cesanta/mongoose/" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/cesanta/mongoose/releases/tag/7.22" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://vuldb.com/cve/CVE-2026-101003" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://vuldb.com/submit/920005" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://vuldb.com/vuln/410873" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://vuldb.com/vuln/410873/cti" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-101003" }, { "category": "external", "summary": "Reference - osv; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101003" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101003.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "baseScore": 5.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1139347", "CSAFPID-1139348", "CSAFPID-1139349", "CSAFPID-1139350", "CSAFPID-1139351", "CSAFPID-1139352", "CSAFPID-1139353", "CSAFPID-1139354", "CSAFPID-1339034", "CSAFPID-1751090", "CSAFPID-1751091", "CSAFPID-1751092", "CSAFPID-5109608", "CSAFPID-5109609", "CSAFPID-5109610", "CSAFPID-5662504", "CSAFPID-5662505", "CSAFPID-5662506", "CSAFPID-5983822", "CSAFPID-667640", "CSAFPID-791230", "CSAFPID-935970" ] } ], "title": "CVE-2026-101003" } ] }