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TI-2024-23263 Aliases CVE-2024-35190

Asterisk' res_pjsip_endpoint_identifier_ip: wrongly matches ALL unauthorized SIP requests

Priority LOW 33CWE-303Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Asterisk is an open source private branch exchange and telephony toolkit. After upgrade to 18.23.0, ALL unauthorized SIP requests are identified as PJSIP Endpoint of local asterisk server. This vulnerability is fixed in 18.23.1, 20.8.1, and 21.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00564 47th 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

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
asteriskasterisk= 21.3.0; = 20.8.0; = 18.23.0—No fix listedCNA
  • asterisk Vendorasterisk Affected = 21.3.0; = 20.8.0; = 18.23.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:sangoma:asterisk:18.23.0:*:*:*:*:*:*:*18.23.0VulnerableSangoma
cpe:2.3:a:sangoma:asterisk:20.8.0:*:*:*:*:*:*:*20.8.0VulnerableSangoma
cpe:2.3:a:sangoma:asterisk:21.3.0:*:*:*:*:*:*:*21.3.0VulnerableSangoma
  • cpe:2.3:a:sangoma:asterisk:18.23.0:*:*:*:*:*:*:* Versions 18.23.0 Vulnerable ·Sangoma
  • cpe:2.3:a:sangoma:asterisk:20.8.0:*:*:*:*:*:*:* Versions 20.8.0 Vulnerable ·Sangoma
  • cpe:2.3:a:sangoma:asterisk:21.3.0:*:*:*:*:*:*:* Versions 21.3.0 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-2024-35190

References

Exploit 1

Patch 3

  • TI-2025-30244 Using malformed From header can forge identity with ";" or NULL in name portion CVSS 3.1HIGH 7.7
  • TI-2023-27195 Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation CVSS 3.1HIGH 7.5
  • TI-2024-28351 Asterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplan CVSS 3.1HIGH 8.8
  • 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
See all 87 →

Sources

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