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TI-2012-01620 Aliases CVE-2012-1836GHSA-pwc6-j7x5-cxc4

Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to…

Priority MEDIUM 42CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute arbitrary code via a crafted DNS query that uses compression.

Why it matters now

EPSS 0.06733 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:inspircd:inspircd:2.0.5:*:*:*:*:*:*:*2.0.5VulnerableInspircd
  • cpe:2.3:a:inspircd:inspircd:2.0.5:*:*:*:*:*:*:* Versions 2.0.5 Vulnerable ·Inspircd

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-1836
  2. 2026-10-03 Alias added: GHSA-pwc6-j7x5-cxc4

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • 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-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
  • TI-2019-15132 An issue was discovered in InspIRCd 3 before 3.1.0. CVSS 3.1MEDIUM 6.5
See all 9 →

Sources

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