{ "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-2026-10848", "tracking": { "current_release_date": "2026-09-06T15:01:27.366639Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-10848", "initial_release_date": "2026-08-02T16:38:47.001014Z", "revision_history": [ { "date": "2026-08-02T16:38:47.001014Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (2).| CWES updated (1)." }, { "date": "2026-08-02T16:38:53.252597Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-08-02T17:25:00.516644Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-08-02T17:25:10.307905Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-08-03T15:36:13.761998Z", "number": "5", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-08-03T15:36:21.347938Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-08-03T15:40:42.057978Z", "number": "7", "summary": "Unknown change." }, { "date": "2026-08-04T06:22:55.169924Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (156).| References created (4).| CWES updated (1)." }, { "date": "2026-08-04T06:23:20.065728Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-08-10T15:27:49.992364Z", "number": "10", "summary": "Products created (1).| Product Identifiers created (1).| Exploits created (1)." }, { "date": "2026-08-10T15:27:51.654080Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-08-11T15:11:44.061858Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-08-11T15:13:36.427844Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-08-31T23:38:41.085544Z", "number": "14", "summary": "Products connected (1).| Products removed (1)." }, { "date": "2026-08-31T23:38:45.717053Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-09-01T12:33:58.254029Z", "number": "16", "summary": "Products connected (3).| Products removed (151)." }, { "date": "2026-09-02T10:45:41.303729Z", "number": "17", "summary": "EPSS updated." }, { "date": "2026-09-02T10:45:43.664002Z", "number": "18", "summary": "NCSC Score updated." }, { "date": "2026-09-03T14:38:06.078821Z", "number": "19", "summary": "EPSS updated." }, { "date": "2026-09-03T14:38:09.568365Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-09-03T19:01:35.037143Z", "number": "21", "summary": "EPSS updated." }, { "date": "2026-09-04T15:47:36.852650Z", "number": "22", "summary": "EPSS updated." }, { "date": "2026-09-05T03:59:37.184919Z", "number": "23", "summary": "NCSC Score updated." }, { "date": "2026-09-05T15:45:30.426469Z", "number": "24", "summary": "EPSS updated." } ], "status": "interim", "version": "24" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/4.3.0|<4.4.2", "product": { "name": "vers:semver/4.3.0|<4.4.2", "product_id": "CSAFPID-8949359" } }, { "category": "product_version_range", "name": "vers:unknown/>=4.3.0|<4.5.0", "product": { "name": "vers:unknown/>=4.3.0|<4.5.0", "product_id": "CSAFPID-8956663", "product_identification_helper": { "cpe": "cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Zephyr" } ], "category": "vendor", "name": "Zephyrproject" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/v4.3.0", "product": { "name": "vers:unknown/v4.3.0", "product_id": "CSAFPID-8570147" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.0", "product": { "name": "vers:unknown/v4.4.0", "product_id": "CSAFPID-8570143" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.0-rc1", "product": { "name": "vers:unknown/v4.4.0-rc1", "product_id": "CSAFPID-8570146" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.0-rc2", "product": { "name": "vers:unknown/v4.4.0-rc2", "product_id": "CSAFPID-8570145" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.0-rc3", "product": { "name": "vers:unknown/v4.4.0-rc3", "product_id": "CSAFPID-8570144" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.1", "product": { "name": "vers:unknown/v4.4.1", "product_id": "CSAFPID-8876795" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.1-rc1", "product": { "name": "vers:unknown/v4.4.1-rc1", "product_id": "CSAFPID-8875133" } }, { "category": "product_version_range", "name": "vers:unknown/v4.4.2-rc1", "product": { "name": "vers:unknown/v4.4.2-rc1", "product_id": "CSAFPID-8960521" } } ], "category": "product_name", "name": "zephyr" } ], "category": "vendor", "name": "zephyrproject-rtos" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-10848", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "The OCPP 1.6 client in subsys/net/lib/ocpp parsed inbound WAMP RPC frames in parse_rpc_msg() (subsys/net/lib/ocpp/ocpp_j.c) using a hand-rolled helper, extract_string_field(), that copied the message's uid and action fields with strncpy(out_buf, token + 1, outlen - 1) and then scanned the result with strchr(out_buf, '\"'). Because strncpy does not NUL-terminate the destination when the source is at least outlen - 1 (127) bytes long, the subsequent strchr reads past the 128-byte destination buffer into adjacent stack memory; if a \" byte is found beyond the buffer, a one-byte out-of-bounds NUL write also occurs. A related defect in extract_payload() runs strchr/strrchr over the receive buffer, which may not be NUL-terminated when a maximal-length frame fills it.\n\nThe parsed bytes come directly from the OCPP central-system server over a websocket: the reader thread fills recv_buf via websocket_recv_msg() and calls parse_rpc_msg() on each inbound DATA frame (subsys/net/lib/ocpp/ocpp.c). A malicious or compromised central server, or an on-path attacker (OCPP is commonly deployed over plain ws://), can send an RPC frame whose uid or action field is 127+ bytes with no closing quote, triggering the out-of-bounds access.\n\nThe primary impact is a remotely triggerable denial of service: the unbounded scan can fault on an unmapped page, and the stray NUL write can corrupt adjacent stack state. The over-read data is not reflected to the peer, so disclosure is limited. The feature is EXPERIMENTAL and must be explicitly enabled (CONFIG_OCPP). The fix replaces the manual parser with the bounds-respecting json_mixed_arr_parse() and copies the extracted uid with an explicitly NUL-terminated buffer, eliminating both over-reads.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10848" }, { "category": "description", "text": "The OCPP 1.6 client in subsys/net/lib/ocpp parsed inbound WAMP RPC frames in parse_rpc_msg() (subsys/net/lib/ocpp/ocpp_j.c) using a hand-rolled helper, extract_string_field(), that copied the message's uid and action fields with strncpy(out_buf, token + 1, outlen - 1) and then scanned the result with strchr(out_buf, '\"'). Because strncpy does not NUL-terminate the destination when the source is at least outlen - 1 (127) bytes long, the subsequent strchr reads past the 128-byte destination buffer into adjacent stack memory; if a \" byte is found beyond the buffer, a one-byte out-of-bounds NUL write also occurs. A related defect in extract_payload() runs strchr/strrchr over the receive buffer, which may not be NUL-terminated when a maximal-length frame fills it.\n\nThe parsed bytes come directly from the OCPP central-system server over a websocket: the reader thread fills recv_buf via websocket_recv_msg() and calls parse_rpc_msg() on each inbound DATA frame (subsys/net/lib/ocpp/ocpp.c). A malicious or compromised central server, or an on-path attacker (OCPP is commonly deployed over plain ws://), can send an RPC frame whose uid or action field is 127+ bytes with no closing quote, triggering the out-of-bounds access.\n\nThe primary impact is a remotely triggerable denial of service: the unbounded scan can fault on an unmapped page, and the stray NUL write can corrupt adjacent stack state. The over-read data is not reflected to the peer, so disclosure is limited. The feature is EXPERIMENTAL and must be explicitly enabled (CONFIG_OCPP). The fix replaces the manual parser with the bounds-respecting json_mixed_arr_parse() and copies the extracted uid with an explicitly NUL-terminated buffer, eliminating both over-reads.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-10848.json?alt=media" }, { "category": "description", "text": "The OCPP 1.6 client in subsys/net/lib/ocpp parsed inbound WAMP RPC frames in parse_rpc_msg() (subsys/net/lib/ocpp/ocpp_j.c) using a hand-rolled helper, extract_string_field(), that copied the message's uid and action fields with strncpy(out_buf, token + 1, outlen - 1) and then scanned the result with strchr(out_buf, '\"'). Because strncpy does not NUL-terminate the destination when the source is at least outlen - 1 (127) bytes long, the subsequent strchr reads past the 128-byte destination buffer into adjacent stack memory; if a \" byte is found beyond the buffer, a one-byte out-of-bounds NUL write also occurs. A related defect in extract_payload() runs strchr/strrchr over the receive buffer, which may not be NUL-terminated when a maximal-length frame fills it.\n\nThe parsed bytes come directly from the OCPP central-system server over a websocket: the reader thread fills recv_buf via websocket_recv_msg() and calls parse_rpc_msg() on each inbound DATA frame (subsys/net/lib/ocpp/ocpp.c). A malicious or compromised central server, or an on-path attacker (OCPP is commonly deployed over plain ws://), can send an RPC frame whose uid or action field is 127+ bytes with no closing quote, triggering the out-of-bounds access.\n\nThe primary impact is a remotely triggerable denial of service: the unbounded scan can fault on an unmapped page, and the stray NUL write can corrupt adjacent stack state. The over-read data is not reflected to the peer, so disclosure is limited. The feature is EXPERIMENTAL and must be explicitly enabled (CONFIG_OCPP). The fix replaces the manual parser with the bounds-respecting json_mixed_arr_parse() and copies the extracted uid with an explicitly NUL-terminated buffer, eliminating both over-reads.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-10848" }, { "category": "other", "text": "0.00255", "title": "EPSS" }, { "category": "other", "text": "3.4", "title": "NCSC Score" }, { "category": "other", "text": "Is related to an uncommon product vendor, Is related to CWE-125 (Out-of-bounds Read), Is related to (a version of) an uncommon product, There is exploit data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-8570143", "CSAFPID-8570144", "CSAFPID-8570145", "CSAFPID-8570146", "CSAFPID-8570147", "CSAFPID-8956663", "CSAFPID-8949359", "CSAFPID-8875133", "CSAFPID-8876795", "CSAFPID-8960521" ] }, "references": [ { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10848" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-10848" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-10848.json?alt=media" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-10848" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/zephyrproject-rtos/zephyr/commit/e500f7b81b5b8a867e28b2f4e59512cbfdd5ae75" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-jgqq-7mjj-w642" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10848.json" }, { "category": "external", "summary": "Reference - osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10848" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H", "baseScore": 7.0, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-8570143", "CSAFPID-8570144", "CSAFPID-8570145", "CSAFPID-8570146", "CSAFPID-8570147", "CSAFPID-8875133", "CSAFPID-8876795", "CSAFPID-8949359", "CSAFPID-8956663", "CSAFPID-8960521" ] } ], "title": "CVE-2026-10848" } ] }