{"id":"CVE-2026-37532","aliases":["EUVD-2026-26686","GHSA-h5cx-4fh7-xq44"],"status":"published","title":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c...","description":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, \u0026data[1], payload_length) reads up to 8 bytes past the end of the data buffer.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00232,"percentile":0.14189,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-126"],"published":"2026-05-01T00:00:00Z","modified":"2026-11-08T16:10:00Z","products":[{"vendor":"linuxfoundation","product":"automotive_grade_linux"}],"references":[{"url":"https://gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level","tags":["Broken Link"]},{"url":"https://gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643","tags":["Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-37532"},{"url":"https://github.com/advisories/GHSA-h5cx-4fh7-xq44"}],"sources":{"cve":[{"id":"CVE-2026-37532","description":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, \u0026data[1], payload_length) reads up to 8 bytes past the end of the data buffer.","status":"published","published":"2026-05-01T00:00:00Z","modified":"2026-05-01T19:45:17.749Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N","level":"high","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T13:39:16.730222Z"}],"euvd":[{"id":"EUVD-2026-26686","description":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, \u0026data[1], payload_length) reads up to 8 bytes past the end of the data buffer.","status":"published","published":"2026-05-01T00:00:00Z","modified":"2026-05-01T19:45:17Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N","level":"high"}],"updated_at":"2026-11-02T19:05:18.340967Z"}],"ghsa":[{"id":"GHSA-h5cx-4fh7-xq44","title":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c...","description":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, \u0026data[1], payload_length) reads up to 8 bytes past the end of the data buffer.","status":"published","published":"2026-05-01T18:31:24Z","modified":"2026-05-01T21:31:20Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T15:07:52.84276Z"}],"nvd":[{"id":"CVE-2026-37532","description":"AGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, \u0026data[1], payload_length) reads up to 8 bytes past the end of the data buffer.","status":"published","published":"2026-05-01T17:16:22.897Z","modified":"2026-11-08T16:10:00.183Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-126"],"updated_at":"2026-11-08T18:10:35.384749Z"}]}}