CVE-2026-91905 Dell CVE debrief

Who should care

System administrators and security teams responsible for Dell OpenManage Enterprise deployments should assess exposure and apply security updates. They should also monitor for potential exploitation attempts and restrict local access to high-privileged users. Additionally, security teams should verify system configurations and review compensating controls for exposed systems.

Why it matters

CVE-2026-91905 is a medium-severity vulnerability in Dell OpenManage Enterprise that allows high-privileged local attackers to gain filesystem access. System administrators and security teams should assess exposure, apply security updates, and monitor for potential exploitation attempts.

• High-privileged local attackers may gain filesystem access, potentially leading to further exploitation
• System administrators must verify and apply security updates to prevent exploitation
• Security teams should monitor for potential exploitation attempts and restrict local access to high-privileged users

Technical summary

Dell OpenManage Enterprise, versions prior to 4.8.0, contains an Improper Verification of Cryptographic Signature vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Filesystem access for attacker. The vulnerability is a result of improper verification of cryptographic signatures, which allows an attacker to bypass security mechanisms and gain elevated access to the filesystem. System administrators and security teams should assess exposure and apply security updates.

Defensive priority

High-privileged local attackers may exploit this vulnerability to gain filesystem access.

Recommended defensive actions

• Review and apply the security update for Dell OpenManage Enterprise vulnerabilities
• Verify system configurations and monitor for potential exploitation attempts
• Restrict local access to high-privileged users
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. The vulnerability is confirmed in Dell OpenManage Enterprise versions prior to 4.8.0. Official advisories and CVE records should be reviewed for specific guidance on affected scope and remediation.

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.