CVE-2009-20007

Critical

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.

SeverityCritical
CVSS9.3
Exploit probability—
ProductTalkative IRC
PublishedSep 16, 2025
First seenSep 16, 2025
Weakness typeCWE-121CWE-121

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Talkative Talkative IRCv ≤ 0.4.4.16—

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