CVE-2001-0669

high Cisco
CVSS v3 Base Score
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS Score
41.5%
Exploitation probability in 30 days
Top 3% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
P
Integrity
P
Availability
P
Published: October 30, 2001 (8962 days ago)
Last Modified: April 16, 2026
Vendor: Cisco
Source: NVD

Description

Various Intrusion Detection Systems (IDS) including (1) Cisco Secure Intrusion Detection System, (2) Cisco Catalyst 6000 Intrusion Detection System Module, (3) Dragon Sensor 4.x, (4) Snort before 1.8.1, (5) ISS RealSecure Network Sensor 5.x and 6.x before XPU 3.2, and (6) ISS RealSecure Server Sensor 5.5 and 6.0 for Windows, allow remote attackers to evade detection of HTTP attacks via non-standard "%u" Unicode encoding of ASCII characters in the requested URL.

CWE

NVD-CWE-Other

Affected Products

cisco catalyst 6000 intrusion detection system modulecisco secure intrusion detection systemiss realsecure network sensoriss realsecure server sensorsnort snortenterasys dragon

References

🔗 marc.info 🔗 www.cisco.com 🔗 www.kb.cert.org 🔗 www.securityfocus.com 🔗 xforce.iss.net