🛡️ CVE-2025-49832
🟡 CVSS 6.5 — Medium ⚠️ Exploit Public CWE-476 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-476
Public Exploit ⚠️ Yes
Source NVD
Published 2025-08-01
Updated 2026-06-02
Modified 2025-08-25
Fix URL N/A

Affected Packages

Software From version Fixed in
asterisk 22.0.0 22.5.1
certified-asterisk

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