Home/CVE/LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics)
CVE

CVE-2025-65018

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics)

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds.

This issue has been patched in version 1.6.51.

HIGH · CVSS 7.1 EPSS 0.00065
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
libpng>= 1.6.0 and < 1.6.51
⚠

Public Exploits & PoCs

2
pocgithub.com · issues/755github.com
pocgithub.com · GHSA-7wv6-48j4-hj3ggithub.com
▣

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Nov 2025 · 12:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

30
msrcCVE-2025-65018Elevation of Privilege
rhsaRHSA-2026:6732Moderate
suse-csafSUSE-SU-2026:20523-1
suse-csafSUSE-SU-2026:20530-1
suse-csafSUSE-SU-2026:0596-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4dPatch
https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1eaPatch
https://github.com/pnggroup/libpng/pull/757Issue Tracking
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