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VulnerabilityPublished Updated

CVE-2026-25906: Dell Optimizer · Link Following

Affects Dell OptimizerSource CVE Database V5

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Not known to be exploited · CVSS 7.3 High : upgrade to 6.3.1.0 soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.3High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.3.1.0
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Dell Optimizer to 6.3.1.0.

Affected software

ProductAffectedFixed in
DellOptimizerAffected
  • >=6.0.0.0 <6.3.1.0
Fixed in
  • 6.3.1.0
Delldell/optimizerpkg:deb/dell/optimizerOther threatsAffected
  • =6.0.0.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

  1. Apply patches: Immediately update Dell Optimizer to version 6.3.1 or later once Dell releases the official patch to address CVE-2026-25906. Monitor Dell security advisories for patch availability.
  2. Restrict local access: Limit local user accounts and permissions to the minimum necessary, preventing untrusted users from gaining local access to systems running Dell Optimizer.
  3. Implement application whitelisting: Use endpoint protection solutions to restrict execution of unauthorized code and prevent exploitation attempts involving malicious link manipulation.
  4. Monitor file system activity: Deploy monitoring tools to detect suspicious creation or modification of symbolic or hard links, especially in directories accessed by Dell Optimizer.
  5. User awareness: Educate users about the risks of interacting with untrusted files or links and the importance of reporting unusual system behavior.
  6. Harden endpoint configurations: Disable unnecessary local accounts, enforce strong authentication, and apply least privilege principles to reduce the attack surface.
  7. Incident response readiness: Prepare to investigate and respond to potential exploitation attempts involving privilege escalation on affected endpoints.
  8. Network segmentation: Isolate critical systems to limit lateral movement opportunities if an endpoint is compromised. These measures collectively reduce the likelihood and impact of exploitation beyond simply applying patches.

Description

Dell Optimizer, versions prior to 6.3.1, contain an Improper Link Resolution Before File Access ('Link Following') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.

References

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