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CVE-2025-66293VulnerabilityPublished Updated

Red Hat Bug Fix Advisory: OpenJDK 25 FIPS Update for Portable Linux Builds

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2025-66293· High 7.1

Not known to be exploited · CVSS 7.1 High : upgrade Red Hat libpng to 1.6.52 soon.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.6.52
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 30 Oct 2026.

What to do

Upgrade pnggroup/libpng to 1.6.52.

Affected software

ProductAffectedFixed in
GitHubpnggroup/libpngpkg:github/pnggroup/libpngOther threatsAffected
  • <1.6.52
Fixed in
  • 1.6.52

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

Description

The OpenJDK 25 packages provide the OpenJDK 25 Java Runtime Environment and the OpenJDK 25 Java Software Development Kit. This release of the Red Hat build of OpenJDK 25 (25.0.2) for portable Linux fixes an issue discovered with the new FIPS implementation in OpenJDK 25: * To effectively provide FIPS support, the Red Hat OpenJDK FIPS implementation needs to restrict the operations that security providers can perform. The new implementation of this filtering in OpenJDK 25 proved to be too restrictive and prevented the use of any third-party providers. With this update, we revert to the previous approach of allowing unrestricted third-party providers and trusting the end user to provide due diligence that these do not break FIPS compliance. (OPENJDK-4570) It also updates the bundled versions of libpng and HarfBuzz to their latest versions (1.6.55 & 12.3.2) respectively. Note that crypto policy and FIPS support is not enabled by default on portable Linux builds, because it depends on support provided by Red Hat Enterprise Linux. This functionality is enabled in the RPMs that are provided in Red Hat Enterprise Linux, which use this same portable build. For further information, refer to the release notes linked to in the References section.

References

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