Read the docs
TI-2019-15132 Aliases CVE-2019-20918GHSA-3c6j-x3h2-c2j2

An issue was discovered in InspIRCd 3 before 3.1.0.

Priority LOW 32CWE-416Published · 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 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

An issue was discovered in InspIRCd 3 before 3.1.0. The silence module contains a use after free vulnerability. This vulnerability can be used for remote crashing of an InspIRCd server by any user able to fully connect to a server.

Why it matters now

EPSS 0.01488 74th percentileScored 2026-11-07
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:inspircd:inspircd:*:*:*:*:*:*:*:*3.0 to before 3.1.0VulnerableInspircd
  • cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:* Versions 3.0 to before 3.1.0 Vulnerable ·Inspircd

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-20918
  2. 2026-10-03 Alias added: GHSA-3c6j-x3h2-c2j2

References

  • TI-2015-05592 Buffer underflow vulnerability in the Debian inspircd package before 2.0.5-1+deb7u1 for… CVSS 3.0CRITICAL 9.8
  • TI-2012-05398 inspircd in Debian before 2.0.7 does not properly handle unsigned integers. CVSS 3.0CRITICAL 9.8
  • TI-2015-07153 The DNS::GetResult function in dns.cpp in InspIRCd before 2.0.19 allows remote DNS… CVSS 3.0HIGH 8.6
  • TI-2012-01620 Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to… CVSS 2.0HIGH 7.5
  • TI-2020-15503 An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. CVSS 3.1MEDIUM 6.5
  • TI-2019-15131 An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0. CVSS 3.1MEDIUM 6.5
See all 9 →

Sources