The Cisco Intrusion Prevention System (IPS) and IOS with Firewall/IPS Feature Set do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.

The 3Com TippingPoint IPS do not properly handle certain full-width and half-width Unicode character encodings in an HTTP POST request, which might allow remote attackers to evade detection of HTTP traffic.

Check Point Web Intelligence does not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.

Multiple IBM ISS Proventia Series products, including the A, G, and M series, do not properly handle certain full-width and half-width Unicode character encodings, which might allow remote attackers to evade detection of HTTP traffic.

Stonesoft StoneGate IPS before 4.0 does not properly decode Fullwidth/Halfwidth Unicode encoded data, which makes it easier for remote attackers to scan or penetrate systems and avoid detection.