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Asterisk

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low advisory

Asterisk: H.323 channel driver stack buffer overflow (CVE-2026-57201)

A stack buffer overflow in the Asterisk chan_ooh323 module allows a remote attacker to crash the telephony process via a crafted H.323 packet.

Asterisk +1 denial-of-service buffer-overflow telephony
1t 1c
medium advisory

Suspicious Command Execution via Web Server on Linux

Identifies suspicious command executions via a web server on Linux systems, potentially indicating a vulnerability exploitation or remote shell access for persistence.

Elastic Defend endpoint linux persistence initial-access vulnerability
3r 2t
high threat

Asterisk pjproject Multiple Vulnerabilities

A remote, authenticated attacker can exploit multiple vulnerabilities in Asterisk's pjproject to cause denial-of-service or memory corruption, potentially leading to code execution or security bypass.

Asterisk voip denial-of-service memory-corruption
2r 4t
medium advisory

Multiple Vulnerabilities in Asterisk Allow for Remote Denial of Service

Multiple vulnerabilities in Asterisk versions 20.18.x before 20.19.0, 21.12.x before 21.12.2, 22.8.x before 22.9.0, 23.2.x before 23.3.0, certified-asterisk 20.x before 20.7-cert10, and certified-asterisk 22.x before 22.8-cert2 allow a remote attacker to cause a denial of service.

Asterisk versions 20.18.x +5 asterisk voip denial-of-service
2r 1t 3c