CVE-2006-4455

5.0 MEDIUM 5% exploit odds No fix listed Denial of service

What it is

Unspecified vulnerability in Xchat 2.6.7 and earlier allows remote attackers to cause a denial of service (crash) via unspecified vectors involving the PRIVMSG command. NOTE: the vendor has disputed this vulnerability, stating that it does not affect 2.6.7 "or any recent version"

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 5.1% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2006-08-30 16:04 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:29 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 5.1% in the next 30 days (EPSS).
Severity: 5.0 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2006-08-30 16:04 UTC
Last modified: 2026-06-16 22:29 UTC
Exploit probability: 5.1% · EPSS, next 30 days
Record status: Modified

Affected

Xchat ≤ 2.6.7

Attack profile CVSS 2.0 · 5.0

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2006-4455.md and follow it. Check whether this project is affected by CVE-2006-4455. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record