Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60, contain(s) an Improper Certificate Validation vulnerability in certificate-based login. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.
Use CWE-295, Dell vendor hub and Powerprotect Dp Series Appliance product page to widen CVE-2026-23776 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-26944, CVE-2026-26354 and CVE-2026-26943 for nearby disclosures in the same product family. Additional editorial context is available in The Weekly Cybersecurity Brief: February 27th, 2026.