{"id":"CVE-2009-4893","aliases":["EUVD-2009-4856","GHSA-cp64-jc72-8g82"],"status":"published","title":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled,...","description":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02512,"percentile":0.8489,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2010-06-15T01:00:00Z","modified":"2026-06-16T23:14:33Z","products":[{"vendor":"unrealircd","product":"unrealircd"}],"references":[{"url":"http://security.gentoo.org/glsa/glsa-201006-21.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2010/06/14/13","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://www.securityfocus.com/bid/42077","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4893"},{"url":"https://github.com/advisories/GHSA-cp64-jc72-8g82"}],"sources":{"cve":[{"id":"CVE-2009-4893","description":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.","status":"published","published":"2010-06-15T01:00:00Z","modified":"2024-08-07T07:17:25.906Z","updated_at":"2026-11-02T14:33:24.451733Z"}],"euvd":[{"id":"EUVD-2009-4856","description":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.","status":"published","published":"2010-06-15T01:00:00Z","modified":"2024-08-07T07:17:25Z","updated_at":"2026-11-03T01:39:08.636548Z"}],"ghsa":[{"id":"GHSA-cp64-jc72-8g82","title":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled,...","description":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.","status":"published","published":"2022-05-02T03:59:10Z","modified":"2023-01-31T05:09:19Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:49:30.42259Z"}],"nvd":[{"id":"CVE-2009-4893","description":"Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.","status":"published","published":"2010-06-15T14:04:26.233Z","modified":"2026-06-16T23:14:33.357Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:01:38.684719Z"}]}}