How severe is CVE-2000-1033?

CVE-2000-1033 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2000-1033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-1033?

CVE-2000-1033 affects Cat Soft Serv-u. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-1033?

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-2000-1033 published?

CVE-2000-1033 was published on 2000-12-11 and last updated on 2026-06-16.

CVE-2000-1033

CVE-2000-1033 is a high-severity vulnerability in Cat Soft Serv-u 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: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cat Soft Serv-u
Published: 2000-12-11
Last modified: 2026-06-16

Description

Serv-U FTP Server allows remote attackers to bypass its anti-hammering feature by first logging on as a valid user (possibly anonymous) and then attempting to guess the passwords of other users.

Frequently asked questions

What is CVE-2000-1033?: Serv-U FTP Server allows remote attackers to bypass its anti-hammering feature by first logging on as a valid user (possibly anonymous) and then attempting to guess the passwords of other users.
How severe is CVE-2000-1033?: CVE-2000-1033 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2000-1033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-1033?: CVE-2000-1033 affects Cat Soft Serv-u. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-1033?: 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-2000-1033 published?: CVE-2000-1033 was published on 2000-12-11 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:cat_soft:serv-u:2.5x:*:*:*:*:*:*:*

More vulnerabilities in Cat Soft Serv-u

CVE-1999-0219 — High (CVSS 7.8): Buffer overflow in FTP Serv-U 2.5 allows remote authenticated users to cause a denial of service (crash) via a long (1)…
CVE-2000-0176 — Medium (CVSS 5.0): The default configuration of Serv-U 2.5d and earlier allows remote attackers to determine the real pathname of the…

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