modules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server handshakes, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request.
CVE-2012-6084
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 86.0%
- KEV
- Not listed
Published
January 1, 2013
Last Modified
April 29, 2026
References (12)
- secalert@redhathttp://openwall.com/lists/oss-security/2013/01/01/4
- secalert@redhathttp://rabbit.dereferenced.org/~nenolod/ASA-2012-12-31.txt
- secalert@redhathttp://www.debian.org/security/2013/dsa-2612
- secalert@redhathttp://www.ratbox.org/download/ircd-ratbox-3.0.8.tar.bz2
- secalert@redhathttp://www.stack.nl/~jilles/irc/charybdis-3.4.2.tbz2
- secalert@redhathttps://github.com/atheme/charybdis/commit/ac0707aa61d9c20e9b09062294701567c9f41595.patch
- af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2013/01/01/4
- af854a3a-2127-422b-91ae-364da2661108http://rabbit.dereferenced.org/~nenolod/ASA-2012-12-31.txt
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2612
- af854a3a-2127-422b-91ae-364da2661108http://www.ratbox.org/download/ircd-ratbox-3.0.8.tar.bz2
- af854a3a-2127-422b-91ae-364da2661108http://www.stack.nl/~jilles/irc/charybdis-3.4.2.tbz2
- af854a3a-2127-422b-91ae-364da2661108https://github.com/atheme/charybdis/commit/ac0707aa61d9c20e9b09062294701567c9f41595.patch
Data Freshness Timeline
(refreshed 7× in last 7d / 35× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
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Frequently asked(4)
What is CVE-2012-6084?
CVE-2012-6084 is a none vulnerability published on January 1, 2013. modules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server handshakes, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed request.
When was CVE-2012-6084 disclosed?
CVE-2012-6084 was first published in the National Vulnerability Database on January 1, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-6084 actively exploited?
CVE-2012-6084 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2012-6084?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-6084, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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