# CVE-2026-25994: asterisk: PJSIP is a free and open source multimedia communication library written in C

CVE-2026-25994 is fixed in 14 products on 1 platform, first by libpj2 2.7.2~dfsg-1ubuntu0.1~esm1, released February 11, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-25994
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0205
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 11, 2026

## Description

PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a buffer overflow vulnerability exists in PJNATH ICE Session when processing credentials with excessively long usernames.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | asterisk Debian 14 | 1:22.10.0+dfsg+~cs6.17.60671434-1 | [DEBIAN-CVE-2026-25994](https://patchblox.com/security/data/fix/linux/debian-cve-2026-25994.md) | Feb 11, 2026 |
| Linux | libpj2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpj2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpj2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjlib-util2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjlib-util2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjlib-util2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjmedia-audiodev2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjmedia-audiodev2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjmedia-audiodev2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjmedia-codec2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjmedia-codec2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjmedia-codec2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjmedia-videodev2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjmedia-videodev2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjmedia-videodev2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjmedia2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjmedia2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjmedia2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjnath2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjnath2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjnath2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjsip-simple2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjsip-simple2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjsip-simple2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjsip-ua2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjsip-ua2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjsip-ua2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjsip2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjsip2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjsip2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjsua2 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjsua2 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjsua2-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | libpjsua2-2v5 Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [libpjsua2-2v5 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libpjsua2-2v5-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |
| Linux | python-pjproject Ubuntu 18.04.6 LTS (bionic) | 2.7.2~dfsg-1ubuntu0.1~esm1 | [python-pjproject 2.7.2~dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-pjproject-2.7.2-dfsg-1ubuntu0.1-esm1.md) | Feb 11, 2026 |

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Data as of 2026-11-09T01:18:40Z 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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