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TI-2025-08524 Aliases CVE-2025-9300GHSA-m23p-3g32-h722

saitoha libsixel img2sixel encoder.c sixel_debug_print_palette stack-based overflow

Priority MEDIUM 55CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00256 17th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
saitohalibsixel1.10.0; 1.10.1; 1.10.2; 1.10.3—No fix listedCNA
  • libsixel Vendorsaitoha Affected 1.10.0; 1.10.1; 1.10.2; 1.10.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*before 1.8.7Vulnerablesaitoha
  • cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:* Versions before 1.8.7 Vulnerable ·saitoha

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-9300
  2. 2026-10-03 Alias added: GHSA-m23p-3g32-h722

References

Exploit 3

Patch 1

  • TI-2026-32536 libsixel: integer overflow in encoder CVSS 3.1HIGH 7.8
  • TI-2026-25469 libsixel: Use-after-free in load_with_gdkpixbuf() CVSS 3.1HIGH 7.8
  • TI-2026-32537 libsixel: integer overflow in parser CVSS 3.1HIGH 7.1
  • TI-2026-25466 libsixel: Integer Overflow in write_png_to_file() leads to Heap-based Buffer Overflow CVSS 3.1HIGH 7.1
  • TI-2026-25464 libsixel: Use-After-Free in load_gif() CVSS 3.1HIGH 7.0
  • TI-2026-25467 libsixel: Use-after-free in sixel_encoder_encode_bytes() CVSS 3.1HIGH 7.3
See all 47 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences