CVE catalog

CVE-2025-9300

libsixel: CVE-2025-9300

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Aug 21, 2025, 1:02:08 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.26% · Oct 25, 2026

A vulnerability was found in saitoha libsixel up to 1.10.3. Affected by this issue is the function sixel_debug_print_palette of the file src/encoder.c of the component img2sixel. The manipulation results in stack-based buffer overflow. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is identified as 316c086e79d66b62c0c4bc66229ee894e4fdb7d1. Applying a patch is advised to resolve this issue.

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	libsixel	sid	`1:1.8.7-r2-1`	fixed
Debian	libsixel	forky	`1:1.8.7-r2-1`	fixed
Debian	libsixel	trixie	`1.10.5-1`	vulnerable
Debian	libsixel	bookworm	`1.10.3-3`	vulnerable
Opensuse	libsixel	tumbleweed	`1.10.5-2.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libsixel	source	sid	`1:1.8.7-1`	not yet assigned	Not reported	[1111877]
Debian	libsixel	source	forky	`1:1.8.7-1`	not yet assigned	Not reported	[1111877]
Debian	libsixel	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1111877]
Debian	libsixel	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1111877]
Opensuse	libsixel	rpm	tumbleweed	`1.10.5-2.1`	Not reported	OPENSUSE-SU-2025:15526-1	Not reported

[Debian bug #1111877]

Notes

[trixie] libsixel: Minor issue [bookworm] libsixel: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libsixel1]Affected
Source package: [libsixel]
Details (2)
- 1.10.3-3 · amd64 · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
- 1.10.3-3 · arm64 · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
[libsixel-bin]Affected
Source package: [libsixel]
Details (2)
- 1.10.3-3 · amd64 · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
- 1.10.3-3 · arm64 · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
[libsixel-dev]Affected
Source package: [libsixel]
Details (2)
- 1.10.3-3 · amd64 · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
- 1.10.3-3 · arm64 · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
[libsixel-examples]Affected
Source package: [libsixel]
Details (2)
- 1.10.3-3 · all · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12
- 1.10.3-3 · all · bookworm
  Affected
  dsa · libsixel · debian · bookworm; dsa · libsixel · debian · 12

[Debian 13 (Trixie)]

[libsixel1]Affected
Source package: [libsixel]
Details (2)
- 1.10.5-1 · amd64 · trixie
  Affected
  dsa · libsixel · debian · 13
- 1.10.5-1 · arm64 · trixie
  Affected
  dsa · libsixel · debian · 13
[libsixel-bin]Affected
Source package: [libsixel]
Details (2)
- 1.10.5-1 · amd64 · trixie
  Affected
  dsa · libsixel · debian · 13
- 1.10.5-1 · arm64 · trixie
  Affected
  dsa · libsixel · debian · 13
[libsixel-dev]Affected
Source package: [libsixel]
Details (2)
- 1.10.5-1 · amd64 · trixie
  Affected
  dsa · libsixel · debian · 13
- 1.10.5-1 · arm64 · trixie
  Affected
  dsa · libsixel · debian · 13
[libsixel-examples]Affected
Source package: [libsixel]
Details (2)
- 1.10.5-1 · all · trixie
  Affected
  dsa · libsixel · debian · 13
- 1.10.5-1 · all · trixie
  Affected
  dsa · libsixel · debian · 13

[openSUSE Tumbleweed]

[libsixel1]Unknown
Source package: [libsixel]
Details (1)
- 1.10.5-2.6 · x86_64 · tumbleweed
  Unknown · Fixed: 1.10.5-2.1
  Version impact unknown
  dsa · libsixel · opensuse · tumbleweed
[libsixel-bash-completion]Unknown
Source package: [libsixel]
Details (1)
- 1.10.5-2.6 · noarch · tumbleweed
  Unknown · Fixed: 1.10.5-2.1
  Version impact unknown
  dsa · libsixel · opensuse · tumbleweed
[libsixel-devel]Unknown
Source package: [libsixel]
Details (1)
- 1.10.5-2.6 · x86_64 · tumbleweed
  Unknown · Fixed: 1.10.5-2.1
  Version impact unknown
  dsa · libsixel · opensuse · tumbleweed
[libsixel-utils]Unknown
Source package: [libsixel]
Details (1)
- 1.10.5-2.6 · x86_64 · tumbleweed
  Unknown · Fixed: 1.10.5-2.1
  Version impact unknown
  dsa · libsixel · opensuse · tumbleweed
[libsixel-zsh-completion]Unknown
Source package: [libsixel]
Details (1)
- 1.10.5-2.6 · noarch · tumbleweed
  Unknown · Fixed: 1.10.5-2.1
  Version impact unknown
  dsa · libsixel · opensuse · tumbleweed

Observed: Oct 24, 2026, 7:41:56 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]