CVE-2012-1836
Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-1836- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-1836- Updated
- 2026-11-02
EUVDEUVD-2012-1846 No score
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.
- Record
EUVD-2012-1846- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pwc6-j7x5-cxc4 No score
Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute...
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.
- Record
GHSA-pwc6-j7x5-cxc4- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2012-1836- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-1836 No score
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.
- Record
DEBIAN-CVE-2012-1836- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
inspircdDebian:12 |
before 2.0.5-0.1 | 2.0.5-0.1 |
inspircdDebian:13 |
before 2.0.5-0.1 | 2.0.5-0.1 |
inspircdDebian:6.0 |
before 1.1.22+dfsg-4+squeeze1, plus listed versions 1.1.22+dfsg-4 |
1.1.22+dfsg-4+squeeze1 |
inspircdDebian:7 |
before 1.1.22+dfsg-4+wheezy1 | 1.1.22+dfsg-4+wheezy1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-1836 is a high vulnerability (CVSS 7.5) in Inspircd, published March 22, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.82%, the 94th percentile. Fixed in inspircd 2.0.5-0.1.