CVE-2026-103780: Dell PowerProtect Data Domain · Stack-based Buffer Overflow
Affects Dell PowerProtect Data DomainSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 8.9.0.0 or later : patch Dell PowerProtect Data Domain as a priority.
Data as of 28 Oct 2026, 10:42 UTC
- Patch
- Available – fixed in 8.9.0.0 or later, 8.6.1.30 or later, 8.3.1.50 or later +1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade Dell PowerProtect Data Domain to 8.9.0.0 or later, 8.6.1.30 or later, 8.3.1.50 or later or 7.13.1.90 or later.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DellPowerProtect Data Domain | Affected
| Fixed in
|
AI-suggested
Apply the official patches provided by Dell. Upgrade affected Dell PowerProtect Data Domain versions to 8.9.0.0 or later for Feature Releases, 8.6.1.30 or later for LTS2026, 8.3.1.50 or later for LTS2025, or 7.13.1.90 or later for LTS2024 to remediate this vulnerability. No other mitigation or workaround is indicated.
Description
Dell PowerProtect Data Domain versions 7.7.1.0 through 8.8, including multiple LTS releases, contain a stack-based buffer overflow vulnerability (CWE-121). This flaw allows an unauthenticated remote attacker to potentially execute arbitrary commands on the affected system. The vulnerability has a critical severity with a CVSS score of 9.8. Fixed versions are available starting from 8.9.0.0 and corresponding LTS patch releases.