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TI-2018-08770 Aliases CVE-2018-12228GHSA-wcxf-gxv3-7xch

An issue was discovered in Asterisk Open Source 15.x before 15.4.1.

Priority LOW 38CWE-835Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-835.

Summary

An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.

Why it matters now

EPSS 0.06462 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*15.0 to before 15.4.1VulnerableSangoma
  • cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* Versions 15.0 to before 15.4.1 Vulnerable ·Sangoma

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-12228
  2. 2026-10-03 Alias added: GHSA-wcxf-gxv3-7xch

References

Exploit 1

Advisory 1

  • TI-2025-30244 Using malformed From header can forge identity with ";" or NULL in name portion CVSS 3.1HIGH 7.7
  • TI-2025-00959 Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation CVSS 4.0HIGH 7.0
  • TI-2025-34699 Asterisk remotely exploitable leak of RTP UDP ports and internal resources CVSS 3.1MEDIUM 6.5
  • TI-2025-31747 Asterisk is Vulnerable to Remote DoS and possible RCE Attacks During Memory Allocation CVSS 3.1MEDIUM 6.5
  • TI-2024-35843 An issue in the action_listcategories() function of Sangoma Asterisk… CVSS 3.1MEDIUM 5.5
  • TI-2025-30245 cli_permissions.conf: deny option does not work for disallowing shell commands CVSS 4.0MEDIUM 4.8
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences