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TI-2023-23565 Aliases CVE-2023-43907GHSA-xwf2-9m25-2hpf

OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.

Priority HIGH 69CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00455 39th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:optipng_project:optipng:0.7.7:*:*:*:*:*:*:*0.7.7VulnerableOptipng Project
  • cpe:2.3:a:optipng_project:optipng:0.7.7:*:*:*:*:*:*:* Versions 0.7.7 Vulnerable ·Optipng Project

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-43907
  2. 2026-10-03 Alias added: GHSA-xwf2-9m25-2hpf

References

Exploit 1

Advisory 3

Other 2

  • TI-2015-06479 Use-after-free vulnerability in OptiPNG 0.6.4 allows remote attackers to execute arbitrary code via a crafted PNG file. CVSS 3.0HIGH 8.8
  • TI-2016-03383 Off-by-one error in the bmp_rle4_fread function in pngxrbmp.c in OptiPNG before 0.7.6… CVSS 3.0HIGH 8.8
  • TI-2016-03382 Heap-based buffer overflow in the bmp_read_rows function in pngxrbmp.c in OptiPNG before… CVSS 3.0HIGH 7.8
  • TI-2017-14545 Integer overflow bug in function minitiff_read_info() of optipng 0.7.6 allows an attacker… CVSS 3.0HIGH 7.8
  • TI-2017-12473 A global buffer overflow in OptiPNG 0.7.6 allows remote attackers to cause a… CVSS 3.0HIGH 7.8
  • TI-2009-00714 Use-after-free vulnerability in the GIFReadNextExtension function in… CVSS 3.1HIGH 7.8
See all 7 →

Sources

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