CVE-2026-86377 Dell PowerProtect Data Domain - Denial of Service

Dell PowerProtect Data Domain 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, and LTS2026 8.6.1.0 through 8.6.1.20 contain an out-of-bounds write vulnerability, letting low privileged remote attackers cause denial of service, exploit requires remote access.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-787

Vendor fix

Update to the latest available version beyond 8.8 or respective LTS versions.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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