How severe is CVE-2000-0787?

CVE-2000-0787 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2000-0787 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0787?

CVE-2000-0787 primarily affects Xchat. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0787?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2000-0787 published?

CVE-2000-0787 was published on 2000-10-20 and last updated on 2026-06-16.

CVE-2000-0787

CVE-2000-0787 is a high-severity vulnerability in Xchat with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Xchat
Published: 2000-10-20
Last modified: 2026-06-16

Description

IRC Xchat client versions 1.4.2 and earlier allows remote attackers to execute arbitrary commands by encoding shell metacharacters into a URL which XChat uses to launch a web browser.

Frequently asked questions

What is CVE-2000-0787?: IRC Xchat client versions 1.4.2 and earlier allows remote attackers to execute arbitrary commands by encoding shell metacharacters into a URL which XChat uses to launch a web browser.
How severe is CVE-2000-0787?: CVE-2000-0787 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2000-0787 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0787?: CVE-2000-0787 primarily affects Xchat. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0787?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2000-0787 published?: CVE-2000-0787 was published on 2000-10-20 and last updated on 2026-06-16.

References

Affected products (11)

cpe:2.3:a:xchat:xchat:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.3.9:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.3.10:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.3.11:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.3.12:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.3.13:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.4:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:1.5.xdev:*:*:*:*:*:*:*

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