How severe is CVE-2001-0683?

CVE-2001-0683 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2001-0683 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0683?

CVE-2001-0683 affects Netscape Collabra Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0683?

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

When was CVE-2001-0683 published?

CVE-2001-0683 was published on 2001-09-20 and last updated on 2026-06-16.

CVE-2001-0683

CVE-2001-0683 is a medium-severity vulnerability in Netscape Collabra Server 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: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netscape Collabra Server
Published: 2001-09-20
Last modified: 2026-06-16

Description

Memory leak in Netscape Collabra Server 3.5.4 and earlier allows a remote attacker to cause a denial of service (memory exhaustion) by repeatedly sending approximately 5K of data to TCP port 5238.

Frequently asked questions

What is CVE-2001-0683?: Memory leak in Netscape Collabra Server 3.5.4 and earlier allows a remote attacker to cause a denial of service (memory exhaustion) by repeatedly sending approximately 5K of data to TCP port 5238.
How severe is CVE-2001-0683?: CVE-2001-0683 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2001-0683 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0683?: CVE-2001-0683 affects Netscape Collabra Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0683?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0683 published?: CVE-2001-0683 was published on 2001-09-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:netscape:collabra_server:*:*:*:*:*:*:*:*

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CVE-2001-0684 — Medium (CVSS 5.0): Netscape Collabra Server 3.5.4 and earlier allows a remote attacker to cause a denial of service by sending seven or…
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