HOMEVULNERABILITIESCVE-2025-64720
HIGH

CVE-2025-64720

CWE-125Published: November 25, 2025· Updated: Jun 17, 2026

7.1
CVSS v3.1

Official 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, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

NVD Source

Technical Analysis

CVE-2025-64720 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Affected Vendors & Products

libpng1 product(s)
libpng
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643
PATCHhttps://github.com/pnggroup/libpng/pull/751
ADVISORYhttps://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww
ADVISORYhttps://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww

All References (5)

→
https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643Patch
→
https://github.com/pnggroup/libpng/issues/686Exploit · Issue Tracking
→
https://github.com/pnggroup/libpng/pull/751Issue Tracking · Patch
→
https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcwwExploit · Vendor Advisory
→
https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcwwExploit · Vendor Advisory

Quick Facts

CVE IDCVE-2025-64720
CVSS Score7.1 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected1 vendor(s)
PublishedNov 25, 2025

Related CVEs (CWE-125)

CVE-2021-21777
10.0
CVE-2013-0767
10.0
CVE-2017-14451
10.0
CVE-2009-2523
10.0
CVE-2021-41556
10.0
CVE-2023-26489
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-64720 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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