SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2001-0669

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…

HIGH 7.5EPSS 4.39%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 2.0
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
4.39% probability · 91th percentile
CISA KEV
Not listed
Affected
cisco/catalyst 6000 intrusion detection system module · cisco/secure intrusion detection system · iss/realsecure network sensor · iss/realsecure server sensor · snort/snort · enterasys/dragon
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.