{"id":"CVE-2009-20007","aliases":["EUVD-2009-5125","GHSA-hv84-7vcq-ccgm"],"status":"published","title":"Talkative IRC v0.4.4.16 Response Buffer Overflow","description":"Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.02433,"percentile":0.8449,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-121"],"published":"2025-09-16T14:34:39Z","modified":"2026-10-01T23:10:00Z","exploits":[{"source":"metasploit","id":"exploit/windows/misc/talkative_response","title":"Talkative IRC v0.4.4.16 Response Buffer Overflow","type":"exploit","platform":"Windows","date":"2009-03-17","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/misc/talkative_response"}],"products":[{"vendor":"talkative","product":"talkative irc"}],"references":[{"url":"https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rb","tags":["exploit"]},{"url":"https://www.exploit-db.com/exploits/8227","tags":["exploit"]},{"url":"https://www.exploit-db.com/exploits/16459","tags":["exploit"]},{"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php","tags":["technical-description","exploit"]},{"url":"https://web.archive.org/web/20090116203306/http://www.talkative-irc.com/","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/talkative-irc-response-buffer-overflow","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-20007"},{"url":"https://web.archive.org/web/20090116203306/http://www.talkative-irc.com"},{"url":"https://github.com/advisories/GHSA-hv84-7vcq-ccgm"}],"sources":{"cve":[{"id":"CVE-2009-20007","title":"Talkative IRC v0.4.4.16 Response Buffer Overflow","description":"Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.","status":"published","published":"2025-09-16T14:34:39.071Z","modified":"2026-05-15T11:13:16.716Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:33:22.699876Z"}],"euvd":[{"id":"EUVD-2009-5125","description":"Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.","status":"published","published":"2025-09-16T14:34:39Z","modified":"2026-05-15T11:13:16Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T19:04:30.03108Z"}],"ghsa":[{"id":"GHSA-hv84-7vcq-ccgm","title":"Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially...","description":"Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.","status":"published","published":"2025-09-16T15:32:37Z","modified":"2025-09-16T15:32:45Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:03:37.643927Z"}],"nvd":[{"id":"CVE-2009-20007","description":"Talkative IRC v0.4.4.16 is vulnerable to a stack-based buffer overflow when processing specially crafted response strings sent to a connected client. An attacker can exploit this flaw by sending an overly long message that overflows a fixed-length buffer, potentially leading to arbitrary code execution in the context of the vulnerable process. This vulnerability is exploitable remotely and does not require authentication.","status":"published","published":"2025-09-16T15:15:42.113Z","modified":"2026-10-01T23:10:00.233Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:01:38.972805Z"}]}}