CVE-2009-20007
Talkative IRC v0.4.4.16 Response Buffer Overflow
Vexday Risk Score
63High priority
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 9.3EPSS 1.7%KEV nãoPoC públicaNuclei —Metasploit simPatch —
Lifecycle
17 Mar 2009Metasploit module available
16 Sep 2025Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
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
Affected products
Talkative · Talkative IRCpublic PoCs found — 4
cve_referenceraw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rbunverifiedcve_referencewww.exploit-db.com/exploits/16459unverifiedcve_referencewww.exploit-db.com/exploits/8227unverifiedcve_referencewww.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.phpunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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Talk to TrueHacking →References
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/talkative_response.rbhttps://web.archive.org/web/20090116203306/http://www.talkative-irc.com/https://www.exploit-db.com/exploits/16459https://www.exploit-db.com/exploits/8227https://www.vulncheck.com/advisories/talkative-irc-response-buffer-overflowhttps://www.zeroscience.mk/en/vulnerabilities/ZSL-2009-4909.php