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CVE-2025-65018

Libpng buffer overflow

7.1 HIGHPublic exploitEPSS 0.26%
  1. Published24 Nov 2025

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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Affected products

Libpng≥ 1.6.0 < 1.6.51

Remediation

Fixed in
Libpng≥ 1.6.51

References

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Frequently asked

Is CVE-2025-65018 being actively exploited?

CVE-2025-65018 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.26%.

How severe is CVE-2025-65018?

CVE-2025-65018 has a CVSS 3.1 base score of 7.1, rated high. EPSS estimates a 0.26% probability of exploitation.

Which products are affected by CVE-2025-65018?

Affected products include Libpng.

How do I fix CVE-2025-65018?

Upgrade affected software to a fixed version, for example Libpng 1.6.51 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.