CVE-2025-65018 - CVE House
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Status published High CVE-2025-65018

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

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from pnggroup

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CVE-2025-66293
LIBPNG has an out-of-bounds read in png_image_read_composite
High 7.1
CVE-2025-64720
LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect palette premultiplication
High 7.1
CVE-2025-64506
LIBPNG is vulnerable to a heap buffer over-read in `png_write_image_8bit` with grayscale+alpha or RGB/RGBA images
Medium 6.1
CVE-2025-64505
LIBPNG is vulnerable to a heap buffer overflow in `png_do_quantize` via malformed palette index
Medium 6.1

Affected Vendor

Affected Software

libpng
Vulnerable Versions:
>= 1.6.0, < 1.6.51

Timeline

Official Publish: November 24th, 2025
Last Modified: November 25th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Weaknesses (CWE)

CWE-787 CWE-122

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact
T1203 Exploitation for Client Execution
Execution