CVE-2026-57187

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap-use-after-free in `PJSIP TCP/SDP` handling by sending a `SIP INVITE` over a connection-oriented transport and disconnecting before Asterisk responds with the `200 OK`. So far, the crash has only been reproduced when Asterisk is built with `Address Sanitizer`, which detects the issue. `Address Sanitizer` is a development tool with significant performance overhead and, according to the maintainer, is not used in production systems. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
CVSS

No CVSS.

Configurations

No configuration.

History

26 Oct 2026, 20:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-26 20:17

Updated : 2026-10-27 15:08


NVD link : CVE-2026-57187

Mitre link : CVE-2026-57187

CVE.ORG link : CVE-2026-57187


JSON object : View

Products Affected

No product.

CWE
CWE-416

Use After Free

CWE-664

Improper Control of a Resource Through its Lifetime