CVE-2026-23740: vulnerability in asterisk
Asterisk vulnerable to potential privilege escalation
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 0epss 0.1%
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, when ast_coredumper writes its gdb init and output files to a directory that is world-writable (for example /tmp), an attacker with write permission(which is all users on a linux system) to that directory can cause root to execute arbitrary commands or overwrite arbitrary files by controlling the gdb init file and output paths. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:N
Affected products
asterisk · asteriskRelated CVEs — asterisk
In the same product, most dangerous first.
CVE-2023-49294MEDIUMAsterisk Path Traversal vulnerabilityEPSS 45.3%CVE-2023-49786HIGHAsterisk susceptible to Denial of Service via DTLS Hello packets during call initiationEPSS 5.3%CVE-2024-42365HIGHAsterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplanEPSS 4.7%CVE-2026-57193MEDIUMAsterisk: LDAP Filter Injection in res_config_ldap via SIP Username (Unauthenticated Information Disclosure)EPSS 2.0%CVE-2009-3723—CVE-2009-3723EPSS 1.2%CVE-2023-37457HIGHAsterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'EPSS 1.1%