# CVE-2026-33069: asterisk: PJSIP is a free and open source multimedia communication library written in C

CVE-2026-33069 is fixed in asterisk on 1 platform by DEBIAN-CVE-2026-33069 (version 1:22.10.0+dfsg+~cs6.17.60671434-1), released March 20, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-33069
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 20, 2026

## Description

PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end. This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.

## 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-2026-33069](https://patchblox.com/security/data/fix/linux/debian-cve-2026-33069.md) | Mar 20, 2026 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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