CVE-2025-47780: Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and…

PriorityP344high7.8CVSS 3.1

AVLACLPRLUINSUCHIHAH

EPSS

0.23%

13.3th percentile

Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, trying to disallow shell commands to be run via the Asterisk command line interface (CLI) by configuring `cli_permissions.conf` (e.g. with the config line `deny=!*`) does not work which could lead to a security risk. If an administrator running an Asterisk instance relies on the `cli_permissions.conf` file to work and expects it to deny all attempts to execute shell commands, then this could lead to a security vulnerability. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.

Affected

15 ranges

Vendor	Product	Version range	Fixed in
asterisk	asterisk	< 18.9-cert14	18.9-cert14
asterisk	asterisk	—	—
asterisk	asterisk	—	—
asterisk	asterisk	—	—
asterisk	asterisk	—	—
asterisk	asterisk	—	—
asterisk	asterisk	>= 0 < 1:16.28.0~dfsg-0+deb11u7	1:16.28.0~dfsg-0+deb11u7
debian	asterisk	< asterisk 1:16.28.0~dfsg-0+deb11u7 (bullseye)	asterisk 1:16.28.0~dfsg-0+deb11u7 (bullseye)
sangoma	asterisk	< 18.26.2	18.26.2
sangoma	asterisk	>= 20.0.0 < 20.14.1	20.14.1
sangoma	asterisk	>= 21.0.0 < 21.9.1	21.9.1
sangoma	asterisk	>= 22.0.0 < 22.4.1	22.4.1
sangoma	certified_asterisk	< 18.9	18.9
sangoma	certified_asterisk	—	—
sangoma	certified_asterisk	—	—

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv4.04.8MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

osv4.8MEDIUM

vendor_debian4.8MEDIUM

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