All vulnerabilities
CVE-2026-57184GHSA-746q-794h-cc7f

Asterisk: Out-of-Bounds Read in Q.931 Information Element Parser (H.323 Addon)

asterisk asterisk
Open in ThreatlineRecord JSON
CVSS
6.3Medium
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
Published26 Oct 2026Updated 26 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, insufficient bounds checking in the chan_ooh323 Q.931 information-element parser permits an out-of-bounds read that may allow an unauthenticated attacker to crash Asterisk using carefully crafted setup packets. The chan_ooh323 addon channel driver must be explicitly compiled and installed, which is not the default, and its port must be publicly reachable. 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