CVE-2021-21548: Dell Emc Unisphere For Powermax

High severity, CVSS 7.4. EPSS: 0.3% chance of exploitation in the next 30 days.

Dell EMC Unisphere for PowerMax versions before 9.1.0.27, Dell EMC Unisphere for PowerMax Virtual Appliance versions before 9.1.0.27, and PowerMax OS Release 5978 contain an improper certificate validation vulnerability. An unauthenticated remote attacker may potentially exploit this vulnerability to carry out a man-in-the-middle attack by supplying a crafted certificate and intercepting the victim's traffic to view or modify a victim’s data in transit.

Affected products

• Dell Emc Unisphere For Powermax: before 9.1.0.27 (fixed in 9.1.0.27)
• Dell Emc Unisphere For Powermax Virtual Appliance: before 9.1.0.27 (fixed in 9.1.0.27)
• Dell Powermax OS: version 5978 only

Published 2023-03-17. Last modified 2026-06-17.