Skip to content
Fencer Vulns
critical 9.8

CVE-2025-40914 json

Perl CryptX before version 0.087 contains a dependency that may be susceptible to an integer overflow

published 2025-06-11 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-18120

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

Perl CryptX before version 0.087 contains a dependency that may be susceptible to an integer overflow.

CryptX embeds a version of the libtommath library that is susceptible to an integer overflow associated with CVE-2023-36328.

Patch / fix

  • dcit cryptx 0.087
  • libcryptx-perl Debian 14 0.087-1

debian advisories DEBIAN-CVE-2025-40914

  • libcryptx-perl Ubuntu Pro 18.04 LTS 0.056-1ubuntu0.1~esm1
  • libcryptx-perl Ubuntu Pro 20.04 LTS 0.067-1ubuntu0.1~esm1
  • libcryptx-perl Ubuntu Pro 22.04 LTS 0.076-1ubuntu0.1~esm1
  • libcryptx-perl Ubuntu Pro 24.04 LTS 0.080-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2025-40914

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • perl-CryptX openSUSE Tumbleweed 0.87.0-1.1

opensuse advisories openSUSE-SU-2025:15259-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-40914 updated cvss 9.8

cryptx: Perl CryptX code execution via integer overflow

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
16 mo ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • MIK CryptX

Classification

Weakness
  • CWE-1395 Dependency on Vulnerable Third-Party Component

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.