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CVE-2026-41069

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entry_count == 0 (creating no chunks) while still passing validation because saio.entry_count == 0 matches, but with saiz.sample_count > 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in ch
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9a1771dcfcf984d87097002dda70183e1f6a37ad1e984a54cb4414bc03a87490
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

{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/problemTypes/1/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:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"libheif","vendor":"strukturag","versions":[{"status":"affected","version":"< 1.22.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/problemTypes/1/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:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/strukturag/libheif/releases/tag/v1.22.0","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libheif/releases/tag/v1.22.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/adp/0/references/0
{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fe398354a57a53d6e416d23bc1b5230ace40978d00dfb8de037734d56f3851dc · sha256:44fec9d2b29095c9… · /containers/cna/references/0

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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