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PatchSiren cyber security CVE debrief

CVE-2026-49817 Dell CVE debrief

Dell Command Update (DCU) versions prior to 5.7.1 are affected by a Deserialization of Untrusted Data vulnerability, which could lead to Elevation of Privileges. This vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. The CVE record was published on 2026-08-19T15:17:07.480Z and has not been modified since then. Organizations should review their deployments and plan for updates to mitigate potential risks.

Vendor
Dell
Product
Command Update
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-19
Original CVE updated
2026-08-21
Advisory published
2026-08-19
Advisory updated
2026-08-21

Who should care

Organizations using Dell Command Update (DCU) versions prior to 5.7.1 should be aware of the potential vulnerability and take steps to update to the latest version. This includes reviewing their deployments, assigning owners for follow-up, and planning vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Technical summary

Dell Command Update (DCU) versions prior to 5.7.1 contain a Deserialization of Untrusted Data vulnerability. A low-privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges. The vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. This issue affects organizations using DCU versions prior to 5.7.1, and they should prioritize updating to the latest version.

Defensive priority

Organizations using Dell Command Update (DCU) versions prior to 5.7.1 should prioritize updating to the latest version to prevent potential elevation of privileges by low-privileged attackers with local access.

Recommended defensive actions

  • Update Dell Command Update (DCU) to version 5.7.1 or later
  • Restrict local access to sensitive systems and monitor for suspicious activity
  • Implement additional security controls to prevent elevation of privileges
  • 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

Evidence notes

The CVE record and NVD entry provide details on the Deserialization of Untrusted Data vulnerability in Dell Command Update (DCU) versions prior to 5.7.1. A low-privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges. The CVSS score is 7.8 with a HIGH severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49817 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49817

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

  • CVE-2026-49817 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49817

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

Supplemental references

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.