How severe is CVE-2006-4455?

CVE-2006-4455 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-4455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4455?

CVE-2006-4455 affects Xchat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-4455?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-4455 published?

CVE-2006-4455 was published on 2006-08-30 and last updated on 2026-06-16.

CVE-2006-4455

CVE-2006-4455 is a medium-severity vulnerability in Xchat with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Xchat
Published: 2006-08-30
Last modified: 2026-06-16

Description

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"

Frequently asked questions

What is CVE-2006-4455?: 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"
How severe is CVE-2006-4455?: CVE-2006-4455 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-4455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4455?: CVE-2006-4455 affects Xchat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4455?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4455 published?: CVE-2006-4455 was published on 2006-08-30 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:xchat:xchat:*:*:*:*:*:*:*:*

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