CVE-2021-26712

—

CVSS 3.1

7.5 high

EPSS

4%p89

Published

Feb 18, 2021 (Feb 18, 2021)

Modified

Jun 17, 2026

Description

Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.

Vendors: digium
Products: asterisk, certified asterisk
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (3.6%)

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