All vulnerabilities
CVE-2026-57197GHSA-8jhw-m2hg-vp3h

Asterisk: Heap Buffer Overflow in OGG/Speex File Playback (format_ogg_speex)

asterisk asterisk
Open in ThreatlineRecord JSON
CVSS
7.7High
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, an unbounded memcpy of OGG/Speex packet data in format_ogg_speex can cause a heap buffer overflow and crash Asterisk when reading a file containing corrupted Speex audio. The attacker must create the file and make it available to Asterisk either through sufficiently elevated privileges or by convincing an Asterisk administrator to make it available. Asterisk must also be configured to play that file. 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 15