Various Intrusion Detection Systems (IDS) including (1) Cisco Secure Intrusion Detection…
Priority MEDIUM 40Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.0439 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:catalyst_6000_intrusion_detection_system_module:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_intrusion_detection_system:*:*:*:*:*:*:*:* | all versions | Vulnerable | Cisco |
| cpe:2.3:a:iss:realsecure_network_sensor:5.x:*:*:*:*:*:*:* | 5.x | Vulnerable | ISS |
| cpe:2.3:a:iss:realsecure_network_sensor:6.x:*:*:*:*:*:*:* | 6.x | Vulnerable | ISS |
| cpe:2.3:a:iss:realsecure_server_sensor:5.5:*:*:*:*:*:*:* | 5.5 | Vulnerable | ISS |
| cpe:2.3:a:iss:realsecure_server_sensor:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | ISS |
| cpe:2.3:a:snort:snort:1.8.1:*:*:*:*:*:*:* | 1.8.1 | Vulnerable | Snort |
| cpe:2.3:h:enterasys:dragon:4.x:*:*:*:*:*:*:* | 4.x | Vulnerable | Enterasys |
- cpe:2.3:a:cisco:catalyst_6000_intrusion_detection_system_module:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_intrusion_detection_system:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
- cpe:2.3:a:iss:realsecure_network_sensor:5.x:*:*:*:*:*:*:* Versions 5.x Vulnerable ·ISS
- cpe:2.3:a:iss:realsecure_network_sensor:6.x:*:*:*:*:*:*:* Versions 6.x Vulnerable ·ISS
- cpe:2.3:a:iss:realsecure_server_sensor:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·ISS
- cpe:2.3:a:iss:realsecure_server_sensor:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·ISS
- cpe:2.3:a:snort:snort:1.8.1:*:*:*:*:*:*:* Versions 1.8.1 Vulnerable ·Snort
- cpe:2.3:h:enterasys:dragon:4.x:*:*:*:*:*:*:* Versions 4.x Vulnerable ·Enterasys
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0669
- 2026-10-03 Alias added: GHSA-5xc8-p2x4-cp2p
References
Sources
- CVE-2001-0669 · CVE Program
- CVE-2001-0669 · NVD
- FIRST EPSS
- GHSA-5xc8-p2x4-cp2p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences