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CVE-2026-53479 Dell CVE debrief

CVE-2026-53479 is an OS command injection vulnerability in Dell PowerProtect Data Domain. A remote high privileged attacker could exploit this vulnerability, leading to protection mechanism bypass. The vulnerability affects Dell PowerProtect Data Domain versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, and LTS2024 release versions 7.13.1.0 through 7.13.1.70. Administrators and users of these versions should apply patches at the earliest opportunity. The vulnerability has a CVSS score of 7.2 and is classified as HIGH severity.

Vendor
Dell
Product
PowerProtect Data Domain
CVSS
HIGH 7.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-07
Original CVE updated
2026-07-08
Advisory published
2026-07-07
Advisory updated
2026-07-08

Who should care

Administrators and users of Dell PowerProtect Data Domain versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, and LTS2024 release versions 7.13.1.0 through 7.13.1.70 should apply patches at the earliest opportunity. This includes operators, platform administrators, vulnerability management teams, and security teams responsible for these systems.

Technical summary

Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an improper neutralization of special elements used in an OS command ('OS command Injection') vulnerability. A remote high privileged attacker could potentially exploit this vulnerability, leading to protection mechanism bypass.

Defensive priority

High

Recommended defensive actions

  • Apply patches at the earliest opportunity
  • Restrict access to affected systems
  • Monitor for suspicious activity
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-07T14:16:32.410Z and was last modified on 2026-07-07T14:35:12.823Z. The NVD entry is currently Undergoing Analysis. This information is based on the CVE record and NVD entry. Dell PowerProtect Data Domain versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 are affected. However, specific details about the vulnerability and affected systems should be verified with the official CVE record and vendor advisories.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53479 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53479

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-53479 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53479

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://www.dell.com/support/kbdoc/en-us/000481268/dsa-2026-278-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities

    [email protected]

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.