All vulnerabilities
CVE-2026-57203GHSA-xgj6-2gc5-5x9c

Asterisk: Local privilege escalation through ast_loggrabber's world-writable helper location

asterisk asterisk
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published27 Oct 2026Updated 27 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, ast_loggrabber executes a Python script from the world-writable /tmp directory. An attacker already authorized to open a shell session on the Asterisk server may place a malicious script there and gain elevated privileges or execute code when an administrator runs ast_loggrabber as a user with elevated privileges. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

Text from CVE List

Affected versions 6

  • asteriskaffected: < 20.20.1CVE List
  • asteriskaffected: >= 21.0.0-pre1, < 21.12.3CVE List
  • asteriskaffected: >= 22.0.0-pre1, < 22.10.1CVE List
  • asteriskaffected: >= 23.0.0-pre1, < 23.4.1CVE List
  • certified-asteriskaffected: < 20.7-cert11CVE List
  • certified-asteriskaffected: >= 22.8-cert1-pre1, < 22.8-cert3CVE List

References 14