CVE-2009-0661

Weechat vulnerability

CVSS

5.0

EPSS

3.1%

EPSS pct

86th

Exploited

No known

Wee Enhanced Environment for Chat (WeeChat) 0.2.6 allows remote attackers to cause a denial of service (crash) via an IRC PRIVMSG command containing crafted color codes that trigger an out-of-bounds read.

Affected vendor

Flashtux

Affected product

Weechat

CVSS vector

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

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2009-03-19

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2009-0661

Confirm whether Flashtux Weechat is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-0661.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-0661

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-0661 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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