CVE-2026-28263: Dell PowerProtect Data Domain · Cross-site Scripting
Affects Dell PowerProtect Data DomainSource CVE Database V5
Not known to be exploited · CVSS 5.9 Medium · fixed in 8.6.0.0 or later : update Dell PowerProtect Data Domain when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 8.6.0.0 or later, 8.3.1.20 or later, 7.13.1.50 or later +1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 17 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Dell PowerProtect Data Domain to 8.6.0.0 or later, 8.3.1.20 or later, 7.13.1.50 or later or 2.7.9 with DD OS 8.3.1.30.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DellPowerProtect Data Domain | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, limit remote access to the affected systems to trusted administrators only and monitor for suspicious activity. Follow Dell's official communications for updates on patches or mitigations.
Description
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 7.13.1.50, contain a cross-site Scripting vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Script injection.