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Vulnerabilities

Security fix · CVE-2026-45383

libde265 is an open source implementation of the h.265 video codec.

Published Jul 21, 2026 · catalog updated Oct 23, 2026 · libde265 is an open

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-45383. EPSS is 0.43%. Act only if a listed version of libde265 is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (libde265 is an open).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.43%
Remediation
Advisory link
Affected products
Alpine:v3.24 libde265

libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in in . When decoding a WPP (Wavefront Parallel Processing) HEVC slice, is computed as inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds , the subsequent array access reads past the end of the allocated vector, triggering a heap-buffer-overflow confirmed by AddressSanitizer. Version 1.0.19 patches the issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Alpine:v3.24 libde2650 → 1.1.3-r0

How to fix CVE-2026-45383

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-45383. EPSS is 0.43%. Act only if a listed version of libde265 is an open is installed.

Which versions are affected?

Compare what you have installed with 0 → 1.1.3-r0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.43%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 21, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in in . When decoding a WPP (Wavefront Parallel Processing) HEVC slice, is computed as inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds , the subsequent array access reads past the end of the allocated vector,

  2. Oct 23, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    libde265 fixed in 1.1.3-r0

  3. Oct 23, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    libde265 fixed in 1.1.3-r0

  4. Oct 23, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in in . When decoding a WPP (Wavefront Parallel Processing) HEVC slice, is computed as inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds , the subsequent array access reads past the end of the allocated vector,

Sources

  • CVE.orgVulnerability recordCVE-2026-45383

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-45383

    30-day exploitation probability 0.43%

    first.org
  • OpenSSF OSV / OSV ScannerPackage advisoryALPINE-CVE-2026-45383
    osv.dev
  • Trivy Vulnerability DBPackage advisoryALPINE-CVE-2026-45383

    libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in in . When decoding a WPP (Wavefront Parallel Processing) HEVC slice, is computed as inside the entry-point loop. If the PPS/SPS

    osv.dev

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 27, 2026
  • Trivy Vulnerability DBOct 25, 2026
  • OpenSSF OSV / OSV ScannerOct 24, 2026
  • CVE.orgOct 23, 2026