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VULNERABILITIES

CVE-2026-23740 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA: CISA-ADPCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/asterisk/asterisk/security/advisories/GHSA-xpc6-x892-v83c [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-427Uncontrolled Search Path Element[email protected]

Affected Products

ProductVersions
sangoma certified asterisk
13.13.0 -
13.13.0 cert1
13.13.0 cert1-rc1
13.13.0 cert1-rc2
13.13.0 cert1-rc3

CPE

  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:-:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert1-rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert1-rc2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert1-rc3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert1-rc4:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert1-rc5:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert10:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert11:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert12:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert13:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert14:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert4-rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert4-rc2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert4-rc3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8:cert4-rc4:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:-:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert10:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert11:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert12:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert4:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert5:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert6:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert7:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert8:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert9:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:-:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1-rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert10:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert11:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert12:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert13:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert14:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert15:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert16:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert6:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert7:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8-rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8-rc2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:18.9:cert9:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6:*:*:*:*:*:*
  • cpe:2.3:a:sangoma:certified_asterisk:20.7:cert7:*:*:*:*:*:*

Remediation

  • No remediation found in references.
sangoma asterisk
< 20.18.2
>= 21.0.0, < 21.12.1
>= 22.0.0, < 22.8.2
>= 23.0.0, < 23.2.2

CPE

  • cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-23740
NVD Published Date:
Feb 6, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-23740 Details - Not Deferred