CVE-2025-64720VulnerabilityPublished 7 Jan 2026Updated 1 Sep 2026

Red Hat Security Advisory: libpng security update

Affects Red Hat libpngSource GCVE Database

Mentioned vulnerabilities

Authoritative record:CVE-2025-64720· High 7.1

Not known to be exploited · CVSS 7.1 High : upgrade Red Hat libpng to 1.6.51 soon.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score

7.1High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.6.51

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

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade pnggroup/libpng to 1.6.51.

Affected software

Product	Affected	Fixed in
GitHubpnggroup/libpng`pkg:github/pnggroup/libpng`Other threats	Affected <1.6.51 >=1.6.0	Fixed in 1.6.51

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released updated libpng packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 9 through 9.8 should apply the security update as described in the Red Hat advisory RHSA-2026:0238 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation.

Description

Multiple security vulnerabilities have been identified in the libpng library used by Red Hat Enterprise Linux 9. These include buffer overflow and heap buffer overflow issues, as well as an out-of-bounds read in the png_image_read_composite function. Red Hat has issued an important security advisory with updates addressing these vulnerabilities. The affected versions include Red Hat Enterprise Linux 9 through 9.8 across various architectures. The advisory provides updated libpng packages to remediate these issues.

Impact

The vulnerabilities in libpng could allow an attacker to cause memory corruption or read out-of-bounds memory, potentially leading to application crashes or information disclosure. The security impact is rated as Important by Red Hat Product Security. No known exploits in the wild have been reported at this time.

Summary

The libpng library in Red Hat Enterprise Linux 9 contains several security flaws: a buffer overflow (CVE-2025-64720), a heap buffer overflow (CVE-2025-65018), and an out-of-bounds read in the png_image_read_composite function (CVE-2025-66293). These vulnerabilities could potentially lead to memory corruption or information disclosure. Red Hat has released updated libpng packages to fix these issues, as detailed in their security advisory RHSA-2026:0238.

CWE-125Out-of-bounds Read (opens in a new tab)
Base weaknessCWE Top 25 (2025): #8
The product reads data past the end, or before the beginning, of the intended buffer.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design · Language Selection
Use a language that provides appropriate memory abstractions.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Overread Buffers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-787Out-of-bounds Write (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #5
The product writes data past the end, or before the beginning, of the intended buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Sep 2026, 00:01 UTC

WeaknessesCWE-125, CWE-787

Technical details

References

Community reviews

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