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CVE-2026-42469

Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_canswitch.cpp the parser does not properly validate a CANswitch DLC value, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted CANswitch frames.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bd5486335c57cc54de9b593cc514f288a5e5051629e8424d0b2541e1bd102ae5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /containers/cna/references/0
{"url":"https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1391"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:34ae7a7f6d6dd725aee4d38388841c62ce0dd2f20b0b34c4da53cc8113dbae41 · sha256:ca1ea2e439f2819a… · /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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