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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-65018
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-25 00:15:47 UTC
Updated2026-10-18 20:10:00 UTC
DescriptionLIBPNG 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

EPSS: 0.002590000 probability, percentile 0.164170000 (date 2026-10-18)

Problem Types: CWE-122 | CWE-787 | CWE-787 CWE-787: Out-of-bounds Write | CWE-122 CWE-122: Heap-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Libpng Libpng All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pnggroup Libpng affected >= 1.6.0, < 1.6.51 Not specified

References

ReferenceSourceLinkTags
github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Vendor Advisory
github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea [email protected] github.com Patch
github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d [email protected] github.com Patch
github.com/pnggroup/libpng/pull/757 [email protected] github.com Issue Tracking
github.com/pnggroup/libpng/issues/755 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Issue Tracking
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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