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CVE-2025-40929VulnerabilityPublished Updated

SUSE · Security update for perl-Cpanel-JSON-XS

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2025-40929· Medium 5.6

Not known to be exploited · CVSS 5.6 Medium.

Data as of 1 Nov 2026, 11:02 UTC

CVSS 3.1 base score
5.6Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 Sep 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 1 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
SUSE Product Security Team SUSEAffected
  • SUSE
  • aarch64
  • perl-Cpanel-JSON-XS-4.420.0-bp160.1.1.aarch64
  • ppc64le
  • perl-Cpanel-JSON-XS-4.420.0-bp160.1.1.ppc64le
  • perl-Cpanel-JSON-XS-0:4.420.0-bp160.1.1.aarch64
  • perl-Cpanel-JSON-XS-0:4.420.0-bp160.1.1.ppc64le
Fixed in–

AI-suggested

A security update is available that addresses these vulnerabilities. Users should upgrade perl-Cpanel-JSON-XS to version 4.42.0 or later to apply all fixes. No additional mitigation is required beyond applying the official update.

Description

This security update for perl-Cpanel-JSON-XS addresses multiple issues including fixes for CVE-2025-40929 related to overflow with overlong numbers, and other bugs affecting JSON encoding and decoding. The update improves handling of malformed numbers, fixes memory corruption and type confusion vulnerabilities, and aligns behavior with JSON::PP. The update is critical due to the nature of the overflow vulnerability and other memory-related fixes.

References

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