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CVE-2001-0427

HIGH · CVSS 7.1EPSS 2.5%EU EUVD

Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via a flood of invalid login requests to (1) the SSL service, or (2) the telnet service, which do not properly disconnect the user after several failed login attempts.

Key facts

CVSS score
7.1 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-20
EPSS score
2.5% (85th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2001-0424)
Published
June 18, 2001
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2001-0424 in the EU Vulnerability Database. Last updated in EUVD on August 8, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / vpn 3000 concentrator
  • cisco / vpn 3005 concentrator
  • cisco / vpn 3015 concentrator
  • cisco / vpn 3030 concentator
  • cisco / vpn 3060 concentrator
  • cisco / vpn 3080 concentrator

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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