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CVE-2000-1033

31
FAUCET Score

CVE-2000-1033 describes a vulnerability in Cat Soft Serv-U FTP Server versions 2.5.x that allows remote attackers to bypass the anti-hammering feature. An attacker can first log in as a valid user (including anonymous) and then conduct brute-force password guessing against other user accounts. This vulnerability carries a high CVSS score of 7.5, indicating a network-based attack with low complexity that can lead to partial compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, an exploit for brute-forcing is available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.5xCPE matchmatch criteria
cpe:2.3:a:cat_soft:serv-u:2.5x:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.56%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-20334 · Oct 29, 2000
This CVE's current EPSS score of 0.0756 is in the 90th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/5436
securityfocus.com / archive/1/141905
securityfocus.com / bid/1860
ExploitVendor Advisory