CVEvulnerability

CVE-2025-49832

6.5 MEDIUM Published 2025-08-01 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-08-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• sangoma asterisk (< 18.26.3) • sangoma asterisk (>= 20.0.0 < 20.15.1) • sangoma asterisk (>= 21.0.0 < 21.10.1) • sangoma asterisk (>= 22.0.0 < 22.5.1) • sangoma certified asterisk (<= 18.9) • sangoma certified asterisk 20.7

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References