CVE-2006-6811

Ksirc vulnerability

CVSS

6.5

EPSS

10.0%

EPSS pct

95th

Exploited

No known

KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference. NOTE: this issue was originally reported as a buffer overflow.

Affected vendor

Kde

Affected product

Ksirc

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness type (CWE)

CWE-617 — Reachable Assertion

Published

2006-12-29

Risk analysis

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

Its EPSS score of 10.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2006-6811

Confirm whether Kde Ksirc is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2006-6811.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-6811

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-6811 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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