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CVE-2026-49346

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7e25084ad2ec0db7c8f16578cab341fb59384e4363dd0b8bc4fbb5b2aa0a5785
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"libde265","vendor":"strukturag","versions":[{"status":"affected","version":"< 1.1.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:da9a1585c18abca9fc67d3644d7b9e9e04f1c167a85caa95eb178cb63dce3b02 · sha256:c20c33ec59204c46… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:da9a1585c18abca9fc67d3644d7b9e9e04f1c167a85caa95eb178cb63dce3b02 · sha256:c20c33ec59204c46… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:da9a1585c18abca9fc67d3644d7b9e9e04f1c167a85caa95eb178cb63dce3b02 · sha256:c20c33ec59204c46… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:da9a1585c18abca9fc67d3644d7b9e9e04f1c167a85caa95eb178cb63dce3b02 · sha256:c20c33ec59204c46… · /containers/cna/references/1
{"name":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:da9a1585c18abca9fc67d3644d7b9e9e04f1c167a85caa95eb178cb63dce3b02 · sha256:c20c33ec59204c46… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:da9a1585c18abca9fc67d3644d7b9e9e04f1c167a85caa95eb178cb63dce3b02 · sha256:c20c33ec59204c46… · /containers/adp/0/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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