CVE-2026-86380: Dell PowerProtect Data Domain integer overflow

CVE-2026-86380 · Severity: high · CVSS 7.2 · Published 2026-10-28

Dell PowerProtect Data Domain is a data protection and backup appliance used by enterprises to secure critical data. An integer overflow vulnerability in multiple release versions could allow a privileged attacker with network access to bypass security protections and potentially compromise the system's integrity.

Technologies: Dell PowerProtect Data Domain. Vendors: Dell.

Quick answers

Is CVE-2026-86380 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-86380 being exploited in the wild.
How severe is CVE-2026-86380?
High severity, with a CVSS score of 7.2, published 28 October 2026.
Which products and versions are affected?
Dell PowerProtect Data Domain Feature Release 7.7.1.0–8.8, LTS2024 7.13.1.0–7.13.1.80, LTS2025 8.3.1.0–8.3.1.40, LTS2026 8.6.1.0–8.6.1.20.
Is there a fix for CVE-2026-86380?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-86380 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-86380?
Check whether you run Dell PowerProtect Data Domain at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An integer overflow or wraparound vulnerability exists in Dell PowerProtect Data Domain that could enable a protection mechanism bypass. A high-privileged attacker with remote network access can exploit this flaw; the advisory does not indicate authentication bypass or local-only requirements. Exploitation leads to circumvention of security controls.

Affected products

  • Dell PowerProtect Data Domain Feature Release 7.7.1.0–8.8, LTS2024 7.13.1.0–7.13.1.80, LTS2025 8.3.1.0–8.3.1.40, LTS2026 8.6.1.0–8.6.1.20

Timeline

  • 2026-10-28: advisory

References

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