# CVE-2025-40914: Perl CryptX before version 0.087 contains a dependency that may be susceptible to an integer overflow

CVE-2025-40914 is fixed in 5 products on 1 platform, first by libcryptx-perl 0.067-1ubuntu0.1~esm1, released June 11, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-40914
- Priority: High
- CVSS: 9.8 (Medium)
- EPSS: 0.0056
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 11, 2025
- Weakness: Dependency on Vulnerable Third-Party Component
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40914

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libcryptx-perl Debian 14 | 0.087-1 | [DEBIAN-CVE-2025-40914](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40914.md) | Jun 11, 2025 |
| Linux | libcryptx-perl Ubuntu 18.04.6 LTS (bionic) | 0.056-1ubuntu0.1~esm1 | [libcryptx-perl 0.056-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcryptx-perl-0.056-1ubuntu0.1-esm1.md) | Jun 11, 2025 |
| Linux | libcryptx-perl Ubuntu 20.04 LTS (focal) | 0.067-1ubuntu0.1~esm1 | [libcryptx-perl 0.067-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcryptx-perl-0.067-1ubuntu0.1-esm1.md) | Jun 11, 2025 |
| Linux | libcryptx-perl Ubuntu 22.04.1 LTS (jammy) | 0.076-1ubuntu0.1~esm1 | [libcryptx-perl 0.076-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libcryptx-perl-0.076-1ubuntu0.1-esm1.md) | Jun 11, 2025 |
| Linux | libcryptx-perl Ubuntu 24.04.5 LTS (noble) | 0.080-2ubuntu0.1~esm1 | [libcryptx-perl 0.080-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcryptx-perl-0.080-2ubuntu0.1-esm1.md) | Jun 11, 2025 |
| Linux | perl-CryptX amzn 2023 | 0.080-1.amzn2023.0.1 | [ALAS2023-2025-1035](https://patchblox.com/security/data/fix/linux/alas2023-2025-1035.md) | Jun 18, 2025 |
| Linux | perl-CryptX-debuginfo amzn 2023 | 0.080-1.amzn2023.0.1 | [ALAS2023-2025-1035](https://patchblox.com/security/data/fix/linux/alas2023-2025-1035.md) | Jun 18, 2025 |
| Linux | perl-CryptX-debugsource amzn 2023 | 0.080-1.amzn2023.0.1 | [ALAS2023-2025-1035](https://patchblox.com/security/data/fix/linux/alas2023-2025-1035.md) | Jun 18, 2025 |
| Linux | perl-CryptX-tests amzn 2023 | 0.080-1.amzn2023.0.1 | [ALAS2023-2025-1035](https://patchblox.com/security/data/fix/linux/alas2023-2025-1035.md) | Jun 18, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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