CVE-2025-65018

HIGH7.1

LIBPNG is vulnerable to a heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read`

Published Nov 24, 2025

Modified 1 months ago

Details

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.

References

WEBhttps://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d WEBhttps://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea DETECTIONhttps://github.com/pnggroup/libpng/issues/755 WEBhttps://github.com/pnggroup/libpng/pull/757 DETECTIONhttps://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-65018

CVSS Analysis

CVSS v3.1

7.1

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

HighI:H

Availability

HighA:H

7.1/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Weakness Type (CWE)

Memory Safety

CWE-787

Out-of-bounds Write

Other

CWE-122

Ecosystems

Timeline

PublishedNov 24, 2025

ModifiedNov 25, 2025