PatchSiren cyber security CVE debrief

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.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-07T14:16:32.410Z and has not been modified since then. The NVD entry is currently Undergoing Analysis.