CVE-2026-26944: Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20,

Q: How do I fix CVE-2026-26944?

powerprotect dp series appliance: upgrade to 2.7.9; data domain operating system: upgrade to 7.13.1.70, 8.3.1.30, 8.6.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-26944 being exploited?

CVE-2026-26944 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-26944 affect?

CVE-2026-26944 affects powerprotect dp series appliance, data domain operating system. Severity is high (CVSS 8.8). Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60 contain a missing authentication for critical function vulnerability. An unau

This month

HIGH 8.8UPGRADEUPGRADE

CVE-2026-26944 is a high-severity flaw (CVSS 8.8) affecting powerprotect dp series appliance, data domain operating system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60 contain a missing authentication for critical function vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to arbitrary command execution with root privileges. Exploitation requires an authenticated user to perform a specif

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-306
Published	2026-04-20
Last modified	2026-10-26

Publisher (CNA): Dell · Vendor: dell

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-20 16:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

dell powerprotect dp series appliance UPGRADE

Affected: < 2.7.9

Fixed in: 2.7.9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy powerprotect-dp-series-appliance || rpm -q powerprotect-dp-series-appliance || powerprotect-dp-series-appliance --version

2. UPGRADE to 2.7.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade powerprotect-dp-series-appliance

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade powerprotect-dp-series-appliance

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

dell data domain operating system UPGRADE

Affected: >= 7.7.1.0 and < 7.13.1.70 · >= 7.14.0.0 and < 8.3.1.30 · >= 8.4.0.0 and < 8.6.1.0

Fixed in: 7.13.1.70, 8.3.1.30, 8.6.1.0

Safe to downgrade to: a release before 7.7.1.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-26944?

powerprotect dp series appliance: upgrade to 2.7.9; data domain operating system: upgrade to 7.13.1.70, 8.3.1.30, 8.6.1.0. Exact commands for each OS are on this page.

Is CVE-2026-26944 being exploited?

CVE-2026-26944 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-26944 affect?

CVE-2026-26944 affects powerprotect dp series appliance, data domain operating system. Severity is high (CVSS 8.8). Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60 contain a missing authentication for critical function vulnerability. An unau

How urgent is CVE-2026-26944?

Priority 42/100. High severity

Software pages

Dell vulnerabilities

Related CVEs

CVE-2026-23778 HIGH 7.2 UPGRADE UPGRADE Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 th
CVE-2026-35074 MEDIUM 6.7 UPGRADE UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6.0.0 and version 8.7.0.0, LTS2025 release versions
CVE-2026-23776 HIGH 7.2 UPGRADE UPGRADE Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 th
CVE-2026-35153 MEDIUM 6.7 UPGRADE UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6.0.0 and version 8.7.0.0, LTS2025 release versions
CVE-2026-23774 HIGH 7.2 UPGRADE UPGRADE Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 th

References

← Back to latest CVEs