CVE-2025-9300 MEDIUM

CVE-2025-9300: saitoha libsixel img2sixel encoder.c sixel_debug_print_palette stack-based overflow

Vendor Saitoha
Product libsixel
Weakness CWE-121
Published August 21, 2025
Last update August 21, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 21, 2025 CVE published
August 21, 2025 Record updated