CVE-2026-86378: Buffer Overflow

Q: Who can exploit this vulnerability?

A remote attacker with low-privileged access to an affected Dell PowerProtect Data Domain system could potentially exploit it. The vector is network-based, and no user interaction is required according to the supplied severity metrics.

Q: Which releases are affected?

Affected Feature Release versions are 7.7.1.0 through 8.8. Affected LTS releases are LTS2024 versions 7.13.1.0 through 7.13.1.80, LTS2025 versions 8.3.1.0 through 8.3.1.40, and LTS2026 versions 8.6.1.0 through 8.6.1.20.

Q: What is the potential impact of exploitation?

Successful exploitation could lead to unauthorized access. The provided CVSS vector also indicates potential high impact to confidentiality, integrity, and availability.

Published Oct 28, 2026

Updated

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Stack-based Buffer Overflow vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.

Affected Software

1 affected component

Dell PowerProtect Data Domain>=7.7.1.0<=8.8, >=7.13.1.0<=7.13.1.80, >=8.3.1.0<=8.3.1.40, >=8.6.1.0<=8.6.1.20

Event History

Oct 28, 2026

CVE Published

via MITRE·10:05 AM

Data Sourced

via MITRE·10:05 AM

DescriptionSeverityWeakness

Frequently Asked Questions

Who can exploit this vulnerability?

A remote attacker with low-privileged access to an affected Dell PowerProtect Data Domain system could potentially exploit it. The vector is network-based, and no user interaction is required according to the supplied severity metrics.

Which releases are affected?

Affected Feature Release versions are 7.7.1.0 through 8.8. Affected LTS releases are LTS2024 versions 7.13.1.0 through 7.13.1.80, LTS2025 versions 8.3.1.0 through 8.3.1.40, and LTS2026 versions 8.6.1.0 through 8.6.1.20.

What is the potential impact of exploitation?

Successful exploitation could lead to unauthorized access. The provided CVSS vector also indicates potential high impact to confidentiality, integrity, and availability.

CVE-2026-86378: Buffer Overflow

Affected Software

Event History

Frequently Asked Questions

Who can exploit this vulnerability?

Which releases are affected?

What is the potential impact of exploitation?

Company

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Frequently Asked Questions

Who can exploit this vulnerability?

Which releases are affected?

What is the potential impact of exploitation?