CVE-2011-1904: Proofpoint Messaging Security Gateway

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

An unspecified function in the web interface in Proofpoint Messaging Security Gateway 6.2.0.263:6.2.0.237 and earlier in Proofpoint Protection Server 5.5.3, 5.5.4, 5.5.5, 6.0.2, 6.1.1, and 6.2.0 allows remote attackers to execute arbitrary commands via unknown vectors, related to a "command injection" issue.

Affected products

• Proofpoint Messaging Security Gateway: up to and including 6.2.0.263\:6.2.0.237
• Proofpoint Protection Server: version 5.5.3 only; version 5.5.4 only; version 5.5.5 only; version 6.0.2 only; version 6.1.1 only; version 6.2.0 only

Published 2011-05-05. Last modified 2026-06-16.