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Command Injection in Dell PowerProtect Data Domain DD OS

IdentifiersCVE-2026-23778CWE-77· Improper Neutralization of Special…

CVE-2026-23778 is a command injection vulnerability in Dell PowerProtect Data Domain Data Domain Operating System (DD OS). According to the provided content, the flaw is caused by insufficient input sanitization in DD OS command processing paths, allowing a high-privileged authenticated attacker with remote access to inject unintended commands and break out of the intended command interface. Successful exploitation can result in root-level access on affected systems. Affected products include Dell PowerProtect Data Domain series appliances, Data Domain Virtual Edition, Dell APEX Protection Storage, Data Domain Management Center, and PowerProtect DP Series Appliance deployments using vulnerable DD OS versions. Reported affected versions include Feature Release 7.7.1.0 through 8.5.0.0, LTS2025 8.3.1.0 through 8.3.1.10, and LTS2024 7.13.1.0 through 7.13.1.40; PowerProtect DP Series Appliance versions prior to 2.7.9 are also affected.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authenticated high-privilege remote attacker to achieve root-level access over the network. With root access, the attacker could execute arbitrary commands, fully compromise the appliance or virtual instance, read, modify, or destroy protected data, interfere with backup and recovery operations, and cause complete loss of availability of the affected system. The provided content states impacts across confidentiality, integrity, and availability are high.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of remote management interfaces to trusted administrative networks only, restrict access to high-privilege accounts, enforce strong credential hygiene and MFA where supported, monitor for anomalous administrative command activity, and minimize the number of users with privileges sufficient to reach the vulnerable command-processing paths. These are general risk-reduction measures; the provided content identifies vendor updates as the definitive fix.

Remediation

Patch, then assume compromise.

Upgrade affected Dell PowerProtect Data Domain/DD OS deployments to a fixed release. Based on the provided content, the remediation versions for CVE-2026-23778 are DD OS 8.6.0.0 or later for the Feature Release track, DD OS 8.3.1.20 or later for LTS2025, DD OS 7.13.1.50 or later for LTS2024, and DD OS 8.6.1.10 for the LTS2026 path. For PowerProtect DP Series Appliance, upgrade to version 2.7.9 or later, which ships with DD OS 8.3.1.30. Dell indicates the fix improves input sanitization in the affected DD OS command processing paths.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Dell TechnologiesData Domain Operating Systemoperating_system
Dell TechnologiesPowerprotect Data Domainapplication
Dell TechnologiesPowerprotect Dp Series Applianceapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-23778
NVD
nvd.nist.gov/vuln/detail/CVE-2026-23778
MITRE CWE · CWE-77
Improper Neutralization of Special Elements…
Vendor Advisory
dell.com/support/kbdoc/en-us/000450699/dsa-2026-060-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities