CVE catalog

CVE-2026-88373

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Sep 24, 2026, 5:17:00 PM UTC
Updated: Sep 24, 2026, 5:17:07 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.42% · Oct 27, 2026

libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libde265	sid	`1.1.3-1`	fixed
Debian	libde265	forky	`1.1.3-1`	fixed
Debian	libde265	trixie	`1.0.15-1+deb13u2`	vulnerable
Debian	libde265	trixie-security	`1.0.15-1+deb13u2`	vulnerable
Debian	libde265	bookworm	`1.0.11-1+deb12u2`	vulnerable
Debian	libde265	bookworm-security	`1.0.11-1+deb12u3`	vulnerable
Ubuntu	libde265	noble	`1.0.15-1ubuntu0.2`	fixed
Ubuntu	libde265-0	noble	`1.0.15-1ubuntu0.2`	fixed
Ubuntu	libde265-dev	noble	`1.0.15-1ubuntu0.2`	fixed
Ubuntu	libde265-examples	noble	`1.0.15-1ubuntu0.2`	fixed
Ubuntu	libde265	pro	`1.0.16-1`	vulnerable
Ubuntu	libde265	pro	`1.0.16-1build1`	vulnerable
Ubuntu	libde265	pro	`1.0.16-1ubuntu0.1~esm1`	vulnerable
Ubuntu	libde265	pro	`1.0.16-1ubuntu0.1~esm2`	fixed
Ubuntu	libde265	24.04	`1.0.12-2`	vulnerable
Ubuntu	libde265	24.04	`1.0.13-1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1build1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1build2`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1build3`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1ubuntu0.1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1ubuntu0.2`	fixed
Ubuntu	libde265	pro	`1.0.16-1`	vulnerable
Ubuntu	libde265	pro	`1.0.16-1build1`	vulnerable
Ubuntu	libde265	pro	`1.0.16-1ubuntu0.1~esm1`	vulnerable
Ubuntu	libde265	pro	`1.0.16-1ubuntu0.1~esm2`	fixed
Ubuntu	libde265	24.04	`1.0.12-2`	vulnerable
Ubuntu	libde265	24.04	`1.0.13-1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1build1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1build2`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1build3`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1ubuntu0.1`	vulnerable
Ubuntu	libde265	24.04	`1.0.15-1ubuntu0.2`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libde265	source	sid	`1.1.2-1`	not yet assigned	Not reported	Not reported
Debian	libde265	source	forky	`1.1.2-1`	not yet assigned	Not reported	Not reported
Debian	libde265	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	libde265	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported
Ubuntu	libde265	deb	noble	`1.0.15-1ubuntu0.2`	Not reported	Not reported	Not reported
Ubuntu	libde265-0	deb	noble	`1.0.15-1ubuntu0.2`	Not reported	Not reported	Not reported
Ubuntu	libde265-dev	deb	noble	`1.0.15-1ubuntu0.2`	Not reported	Not reported	Not reported
Ubuntu	libde265-examples	deb	noble	`1.0.15-1ubuntu0.2`	Not reported	Not reported	Not reported
Ubuntu	libde265	deb	pro	`1.0.16-1ubuntu0.1~esm2`	Not reported	USN-8909-1	Not reported
Ubuntu	libde265	deb	24.04	`1.0.15-1ubuntu0.2`	Not reported	USN-8909-1	Not reported
Ubuntu	libde265	deb	pro	`1.0.16-1ubuntu0.1~esm2`	Not reported	UBUNTU-CVE-2026-88373	Not reported
Ubuntu	libde265	deb	24.04	`1.0.15-1ubuntu0.2`	Not reported	UBUNTU-CVE-2026-88373	Not reported

Notes

[trixie] libde265: Minor issue [bookworm] libde265: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libde265-0]Affected
Source package: [libde265]
Details (2)
- 1.0.11-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · libde265 · debian · bookworm; nvd · libde265 · debian · 12
- 1.0.11-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · libde265 · debian · bookworm; nvd · libde265 · debian · 12
[libde265-dev]Affected
Source package: [libde265]
Details (2)
- 1.0.11-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · libde265 · debian · bookworm; nvd · libde265 · debian · 12
- 1.0.11-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · libde265 · debian · bookworm; nvd · libde265 · debian · 12
[libde265-examples]Affected
Source package: [libde265]
Details (2)
- 1.0.11-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · libde265 · debian · bookworm; nvd · libde265 · debian · 12
- 1.0.11-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · libde265 · debian · bookworm; nvd · libde265 · debian · 12

[Debian 13 (Trixie)]

[libde265-0]Affected
Source package: [libde265]
Details (5)
- 1.0.15-1+b3 · amd64 · trixie
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+b3 · arm64 · trixie
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u1 · amd64 · trixie-security · Historical version
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u1 · arm64 · trixie-security
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u2 · amd64 · trixie-security
  Affected
  nvd · libde265 · debian · 13
[libde265-dev]Affected
Source package: [libde265]
Details (5)
- 1.0.15-1+b3 · amd64 · trixie
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+b3 · arm64 · trixie
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u1 · amd64 · trixie-security · Historical version
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u1 · arm64 · trixie-security
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u2 · amd64 · trixie-security
  Affected
  nvd · libde265 · debian · 13
[libde265-examples]Affected
Source package: [libde265]
Details (5)
- 1.0.15-1+b3 · amd64 · trixie
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+b3 · arm64 · trixie
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u1 · amd64 · trixie-security · Historical version
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u1 · arm64 · trixie-security
  Affected
  nvd · libde265 · debian · 13
- 1.0.15-1+deb13u2 · amd64 · trixie-security
  Affected
  nvd · libde265 · debian · 13

Observed: Oct 27, 2026, 5:22:33 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Ubuntu Security Notices (USN)]