CVE-2012-4999: Mercurycom MR804

Medium severity, CVSS 6.1. EPSS: 6.6% chance of exploitation in the next 30 days.

Mercury MR804 Router 8.0 3.8.1 Build 101220 Rel.53006nB allows remote attackers to cause a denial of service (service hang) via a crafted string in HTTP header fields such as (1) If-Modified-Since, (2) If-None-Match, or (3) If-Unmodified-Since. NOTE: some of these details are obtained from third party information.

Affected products

• Mercurycom MR804
• Mercurycom MR804 Firmware: version 3.8.1 only

Published 2012-09-19. Last modified 2026-06-16.