CVE-2009-20007: Talkative Irc

Critical severity, CVSS 9.3. EPSS: 1.7% chance of exploitation in the next 30 days.

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.

Affected products

• Talkative Talkative Irc: up to and including 0.4.4.16

Published 2025-09-16. Last modified 2026-10-01.