CVE-2026-91908 Dell CVE debrief

Who should care

Defenders responsible for Dell OpenManage Enterprise systems, particularly those with high-privileged users and adjacent network access, should assess exposure and prioritize remediation.

Why it matters

Defenders should care about CVE-2026-91908 because it affects Dell OpenManage Enterprise versions prior to 4.8.0, allowing potential code execution by high-privileged attackers with adjacent network access. Verification of the system version and remediation through upgrading are necessary.

• Potential code execution by high-privileged attackers
• Verification of Dell OpenManage Enterprise version is necessary
• Remediation requires upgrading to version 4.8.0 or later

Technical summary

Dell OpenManage Enterprise versions prior to 4.8.0 contain an Improper Verification of Cryptographic Signature vulnerability, which could allow a high privileged attacker with adjacent network access to execute code. The vulnerability has a CVSS score of 5.7 and a severity of MEDIUM. It is necessary to verify the system version and remediate through upgrading to version 4.8.0 or later. The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited.

Defensive priority

Defenders should prioritize verifying and upgrading to version 4.8.0 or later.

Recommended defensive actions

• Verify Dell OpenManage Enterprise version and upgrade to 4.8.0 or later if necessary
• Restrict adjacent network access for high-privileged users
• Monitor for potential exploitation attempts
• 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 and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. The CVE record was published on 2026-11-02T13:17:40.497Z and has not been modified since then. The NVD entry provides official NIST NVD detail page and source-specific vulnerability assessment. However, further details on affected scope and vendor guidance are required for comprehensive understanding.

Sources and 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.