CVE-2026-23853: Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 th

Q: How do I fix CVE-2026-23853?

powerprotect dp series appliance: upgrade to 2.7.9; data domain operating system: upgrade to 7.13.1.60, 8.3.1.30. Exact commands for each OS are on this page.

Q: Is CVE-2026-23853 being exploited?

CVE-2026-23853 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-2026-23853 affect?

CVE-2026-23853 affects powerprotect dp series appliance, data domain operating system. Severity is high (CVSS 8.4). Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.50, contain a use of

Routine

HIGH 8.4UPGRADEUPGRADE

CVE-2026-23853 is a high-severity flaw (CVSS 8.4) 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 with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.50, contain a use of weak credentials vulnerability. An unauthenticated attacker with local access could potentially exploit this vulnerability, leading to unauthorized access to the system.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-1391
Published	2026-04-17
Last modified	2026-10-25

Publisher (CNA): Dell · Vendor: dell

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-17 08:16 UTCPublished CVE record published
2026-10-25 23:10 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 < 7.13.1.60 · >= 7.14.0.0 and < 8.3.1.30 · >= 8.4.0.0 and <= 8.6.0.0

Fixed in: 7.13.1.60, 8.3.1.30

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-2026-23853?

powerprotect dp series appliance: upgrade to 2.7.9; data domain operating system: upgrade to 7.13.1.60, 8.3.1.30. Exact commands for each OS are on this page.

Is CVE-2026-23853 being exploited?

CVE-2026-23853 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-2026-23853 affect?

CVE-2026-23853 affects powerprotect dp series appliance, data domain operating system. Severity is high (CVSS 8.4). Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.50, contain a use of

How urgent is CVE-2026-23853?

Priority 31/100. High severity

Software pages

Dell vulnerabilities

Related CVEs

CVE-2026-22761 MEDIUM 6.7 UPGRADE UPGRADE Dell PowerProtect Data Domain, versions 8.5 through 8.6 contain a command injection vulnerability
CVE-2026-35072 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-2026-24505 HIGH 7.2 UPGRADE UPGRADE Dell PowerProtect Data Domain, versions 8.5 through 8.6 contain an improper input validation vulnerability

References

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