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CVE-2026-54413

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. The handler reads the SecurityAccess subFunction from recv_buf[1] without first checking that recv_len is at least 2,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e3b13a2d0681cc3698007a3a3e8e50475725ab3ea2fa513f27c418e4ab72c30c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"YES","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.8,"baseSeverity":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"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/AU:Y/V:D","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImp…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/metrics/1/cvssV3_1
cwe · 2 assertions

{"cweId":"CWE-191","description":"CWE-191 Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://github.com/driftregion/iso14229","defaultStatus":"unknown","product":"iso14229","programFiles":["iso14229.c"],"programRoutines":[{"name":"Handle_0x27_SecurityAccess"}],"repo":"https://github.com/driftregion/iso14229","vendor":"driftregion","versions":[{"lessThanOrEqual":"0.9.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"YES","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.8,"baseSeverity":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"DIFFUSE","vectorString":"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/AU:Y/V:D","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImp…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-191","description":"CWE-191 Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"CWE-125: Out-of-bounds Read","tags":["technical-description"],"url":"https://cwe.mitre.org/data/definitions/125.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/references/3
{"name":"CWE-191: Integer Underflow (Wrap or Wraparound)","tags":["technical-description"],"url":"https://cwe.mitre.org/data/definitions/191.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/references/2
{"name":"driftregion/iso14229 - upstream repository","tags":["product"],"url":"https://github.com/driftregion/iso14229"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/references/0
{"name":"Vulnerable Handle_0x27_SecurityAccess() in iso14229.c","tags":["product"],"url":"https://github.com/driftregion/iso14229/blob/main/iso14229.c#L1447"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ac10f046378fe918d64b697d5d5609b95a710878860e5807bb8ead8a5a3c608 · sha256:53e34928a5c03bd1… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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