{ "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-2026-3548", "tracking": { "current_release_date": "2026-03-26T04:29:41.003620Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-3548", "initial_release_date": "2026-03-20T18:15:55.503813Z", "revision_history": [ { "date": "2026-03-20T18:15:55.503813Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T18:15:57.907356Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-20T18:16:32.942046Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (2).| CWES updated (1).| Unknown change." }, { "date": "2026-03-20T18:16:35.779853Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:24:20.613597Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Products connected (2)." }, { "date": "2026-03-20T18:24:24.178335Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:28:59.049173Z", "number": "7", "summary": "Description created for source." }, { "date": "2026-03-20T21:58:30.217097Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T21:58:33.372018Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-25T12:20:09.295552Z", "number": "10", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| Products connected (2).| CWES updated (1)." }, { "date": "2026-03-25T12:20:12.126991Z", "number": "11", "summary": "NCSC Score updated." } ], "status": "interim", "version": "11" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/*", "product": { "name": "vers:microsoft/*", "product_id": "CSAFPID-5874039", "product_identification_helper": { "cpe": "cpe:2.3:a:microsoft:azl3_mariadb_10.11.16-1:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "azl3 mariadb 10.11.16-1 on Azure Linux 3.0" }, { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/*", "product": { "name": "vers:microsoft/*", "product_id": "CSAFPID-5775806", "product_identification_helper": { "cpe": "cpe:2.3:a:microsoft:cbl2_mariadb_10.6.24-1:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "cbl2 mariadb 10.6.24-1 on CBL Mariner 2.0" } ], "category": "product_family", "name": "Open Source Software" } ], "category": "vendor", "name": "Microsoft" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/<5.9.0", "product": { "name": "vers:semver/<5.9.0", "product_id": "CSAFPID-5873846" } } ], "category": "product_name", "name": "wolfSSL" } ], "category": "vendor", "name": "wolfSSL" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-1410445" } } ], "category": "product_name", "name": "wolfssl" } ], "category": "product_family", "name": "bookworm" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-1410425" } } ], "category": "product_name", "name": "wolfssl" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-3548", "cwe": { "id": "CWE-122", "name": "Heap-based Buffer Overflow" }, "notes": [ { "category": "description", "text": "Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs, either of these out of bound writes could be triggered. Note this only affects builds that specifically enable CRL support, and the user would need to load a CRL from an untrusted source.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3548" }, { "category": "description", "text": "Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs, either of these out of bound writes could be triggered. Note this only affects builds that specifically enable CRL support, and the user would need to load a CRL from an untrusted source.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3548.json" }, { "category": "description", "text": "Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs, either of these out of bound writes could be triggered. Note this only affects builds that specifically enable CRL support, and the user would need to load a CRL from an untrusted source.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-3548" }, { "category": "description", "text": "Buffer overflow in CRL number parsing in wolfSSL", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "other", "text": "0.00016", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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": "7.2", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.2", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent EPSS score, Is related to (a version of) an uncommon product, The value of the most recent CVSS (V3) score, There is cwe data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5873846", "CSAFPID-1410425", "CSAFPID-1410445", "CSAFPID-5775806", "CSAFPID-5874039" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3548" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/3xxx/CVE-2026-3548.json" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-3548" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://github.com/wolfSSL/wolfssl/pull/9628/" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://github.com/wolfSSL/wolfssl/pull/9873/" } ], "title": "CVE-2026-3548" } ] }