CVE-2026-21419
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedDell Display and Peripheral Manager (Windows) versions prior to 2.2 contain an Improper Link Resolution Before File Access ('Link Following') vulnerability in the Installer and Service. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceDell Display and Peripheral Manager versions prior to 2.2 contain an Improper Link Resolution Before File Access (link following) vulnerability in the installer and service components. A low-privileged local attacker can exploit this by manipulating symbolic links to gain elevated file access privileges, leading to privilege escalation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Dell Display and Peripheral Manager is installedOpen Programs and Features (or equivalent) and look for 'Dell Display and Peripheral Manager' in the installed software list, or query the system using: Get-WItemProperty 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' | Where-Object {$_.DisplayName -like '*Dell Display and Peripheral Manager*'}Affected if The software appears in the installed programs list
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Determine the installed versionRight-click the entry in Programs and Features and select Properties, or use the PowerShell query above to retrieve the DisplayVersion fieldAffected if The version displayed is lower than 2.2 (for example, 2.1, 2.0, or 1.x)
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Identify installer and service component directoriesCheck the installation directory (typically C:\Program Files\Dell\ or C:\Program Files (x86)\Dell\) for subfolders containing installer or service-related executables and configuration filesAffected if The installer or service executables exist in typical installation paths
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Verify write permissions on installer/service directoriesRight-click the installation folders, go to Properties > Security, and review which users or groups have Write or Modify permissions to directories used by the Dell installer and service componentsAffected if Standard or low-privileged users have Write permissions to directories that the Dell installer or service accesses
You are affected if Dell Display and Peripheral Manager is installed with a version lower than 2.2 and the installer/service components are present with potentially exploitable permissions.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate Dell Display and Peripheral Manager to version 2.2 or later to remediate this vulnerability. As a compensating control, restrict write access to directories used by the installer and service to prevent symlink manipulation attacks.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-21419 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-21419 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data