CVE-2026-23740
0.0 · NONEOverview
CVE-2026-23740 is a none-severity vulnerability affecting sangoma certified_asterisk. It was published on February 6, 2026 and has a CVSS 3.1 base score of 0.0 (NONE).
This vulnerability has a CVSS 3.1 base score of 0.0, rated NONE. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from sangoma. Update certified_asterisk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| sangoma | asterisk | >= 0, < 20.18.2 | Affected |
Frequently Asked Questions
What is CVE-2026-23740?
CVE-2026-23740 is a none-severity vulnerability affecting sangoma certified_asterisk. It was published on February 6, 2026 and has a CVSS 3.1 base score of 0.0 (NONE).
How severe is CVE-2026-23740?
This vulnerability has a CVSS 3.1 base score of 0.0, rated NONE. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-23740?
Check the references section for vendor advisories and patches from sangoma. Update certified_asterisk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-23740?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-23740 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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