How severe is CVE-2000-0620?

CVE-2000-0620 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0620?

CVE-2000-0620 primarily affects Open Group X. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0620?

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

When was CVE-2000-0620 published?

CVE-2000-0620 was published on 2000-06-19 and last updated on 2026-06-16.

CVE-2000-0620

CVE-2000-0620 is a medium-severity vulnerability in Open Group X 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: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Open Group X
Published: 2000-06-19
Last modified: 2026-06-16

Description

libX11 X library allows remote attackers to cause a denial of service via a resource mask of 0, which causes libX11 to go into an infinite loop.

Frequently asked questions

What is CVE-2000-0620?: libX11 X library allows remote attackers to cause a denial of service via a resource mask of 0, which causes libX11 to go into an infinite loop.
How severe is CVE-2000-0620?: CVE-2000-0620 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0620?: CVE-2000-0620 primarily affects Open Group X. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0620 published?: CVE-2000-0620 was published on 2000-06-19 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:open_group:x:11.0r6:*:*:*:*:*:*:*
cpe:2.3:a:open_group:x:11.0r6.1:*:*:*:*:*:*:*
cpe:2.3:a:open_group:x:11.0r6.2:*:*:*:*:*:*:*
cpe:2.3:a:open_group:x:11.0r6.3:*:*:*:*:*:*:*
cpe:2.3:a:open_group:x:11.0r6.4:*:*:*:*:*:*:*
cpe:2.3:a:xfree86_project:x11r6:3.3.3:*:*:*:*:*:*:*
cpe:2.3:a:xfree86_project:x11r6:3.3.4:*:*:*:*:*:*:*
cpe:2.3:a:xfree86_project:x11r6:3.3.5:*:*:*:*:*:*:*
cpe:2.3:a:xfree86_project:x11r6:3.3.6:*:*:*:*:*:*:*
cpe:2.3:a:xfree86_project:x11r6:4.0:*:*:*:*:*:*:*

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