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Vulnerability record · CVE-2026-54413 · published 14 June 2026

CVE-2026-54413: Out-of-bounds read vulnerability

driftregion iso14229 through 0.9.0 contains an integer underflow and downstream out-of-bounds read in the Handle_0x27_SecurityAccess function in iso14229.c that allows a remote unauthenticated attacker to crash a UDS server and potentially read memory past the receive buffer by sending a single-byte 0x27 SecurityAccess request that follows any earlier well-formed 0x27 message.

7.8 CVSS 4.0 High EPSS 0.72% · top 48.1% CWE-125 · Out-of-bounds readCWE-191 · CWE-191 Deferred
7.8CVSS 4.0 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
10 Aug 2026Last modified by NVD

Description

driftregion iso14229 through 0.9.0 contains an integer underflow and downstream out-of-bounds read in the Handle_0x27_SecurityAccess function in iso14229.c that allows a remote unauthenticated attacker to crash a UDS server and potentially read memory past the receive buffer by sending a single-byte 0x27 SecurityAccess request that follows any earlier well-formed 0x27 message.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/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:Y/R:

References

LinkTags
https://cwe.mitre.org/data/definitions/125.html
https://cwe.mitre.org/data/definitions/191.html
https://github.com/driftregion/iso14229
https://github.com/driftregion/iso14229/blob/main/iso14229.c#L1447

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-54413), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.