# CVE-2025-65018: LIBPNG is vulnerable to a heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read`

> CVE-2025-65018: LIBPNG is vulnerable to a heap buffer overflow in `png_combine_row` triggered via `png_image_finish_read`. CVSS 7.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-65018
Last updated: 2026-10-18T20:10:00Z

- Published: 2025-11-24 23:50 UTC · Updated: 2026-10-18 20:10 UTC · Assigner: GitHub\_M
- CVSS: 7.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- EPSS: 0.28%, 20th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-122, CWE-787

## 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.

## Affected vendors and products

- pnggroup: libpng

## Tracked companies

- [GitLab](https://rewindex.com/company/gitlab.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-65018)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-65018)
- [https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d](https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d)
- [https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea](https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea)
- [https://github.com/pnggroup/libpng/issues/755](https://github.com/pnggroup/libpng/issues/755)
- [https://github.com/pnggroup/libpng/pull/757](https://github.com/pnggroup/libpng/pull/757)
- [https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g](https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-65018 · Markdown: https://rewindex.com/cve/CVE-2025-65018.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-65018 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:14.482Z