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Vulnerabilities

Security fix · CVE-2026-49346

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

Published Jun 19, 2026 · catalog updated Oct 23, 2026 · libde265 is an open

Last checked Oct 30, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-49346. EPSS is 0.37%. 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
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Advisory link
Affected products
Alpine:v3.24 libde265

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 ( ). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent call computes the real size using , writing ~4 GB into the undersized heap buffer. Version 1.1.0 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-2026-49346

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-2026-49346. EPSS is 0.37%. 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 0.37%. 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. Jun 19, 2026 · Trivy Vulnerability DB

    Detected

    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 ( ). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent call computes the real size using , writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches

  2. Oct 23, 2026 · Trivy Vulnerability DB

    Fix available

    libde265 fixed in 1.1.3-r0

  3. Oct 23, 2026 · Trivy Vulnerability DB

    Fix available

    libde265 fixed in 1.1.3-r0

  4. Oct 23, 2026 · Trivy Vulnerability DB

    Updated

    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 ( ). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent call computes the real size using , writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches

Sources

  • CVE.orgVulnerability recordCVE-2026-49346

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-49346

    30-day exploitation probability 0.37%

    first.org
  • Trivy Vulnerability DBPackage advisoryALPINE-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 ( ). The overflow wraps the plane allocation size to a small value (~1 KB), but

    osv.dev

References

Freshness

Last verified in this catalog Oct 30, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 30, 2026
  • CVE.orgOct 23, 2026
  • Trivy Vulnerability DBOct 23, 2026