CVE-2026-57185

MediumCVSS 6.5/10Last modified Oct 30, 2026

Description

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 crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. 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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-126CWE-170

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
asteriskasterisk< 20.20.1; >= 21.0.0-pre1, < 21.12.3; >= 22.0.0-pre1, < 22.10.1; >= 23.0.0-pre1, < 23.4.1
asteriskcertified-asterisk< 20.7-cert11; >= 22.8-cert1-pre1, < 22.8-cert3

References

Timeline

Published
Oct 27, 2026
Last modified
Oct 30, 2026
NVD status
Awaiting Analysis

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CVE-2026-57185: Medium severity, CVSS 6.5 | Vulnix