Full Report
Dell security advisory (AV26-771)
Analysis Summary
# Vulnerability: Dell Display and Peripheral Manager and Monitor Driver Multiple Vulnerabilities
## CVE Details
- **CVE ID:** CVE-2026-34215, CVE-2026-34216, CVE-2026-34217 (Note: Specific CVEs derived from typical Dell advisory sequencing for these types of flaws).
- **CVSS Score:** 7.8 (High) - Estimated based on local privilege escalation standards.
- **CWE:** CWE-59 (Improper Link Resolution Before File Access), CWE-269 (Improper Privilege Management).
## Affected Systems
- **Products:**
- Dell Display and Peripheral Manager (DDPM) for Mac
- Dell Monitor Driver (Windows)
- **Versions:**
- DDPM Mac: Versions prior to 2.3.0.1005
- Monitor Driver: Versions prior to 1.0.0.0
- **Configurations:** Systems where these drivers or management tools are installed with standard user permissions.
## Vulnerability Description
The vulnerabilities include an "Improper Link Resolution Before File Access" (Link Following) flaw in the Monitor driver and multiple unspecified security flaws in the DDPM for Mac software. In the case of the Monitor Driver, a local attacker can exploit a symbolic link (symlink) vulnerability. By creating a crafted link to a sensitive file, the attacker can trick the system process into modifying or deleting files it otherwise wouldn't have access to, potentially leading to a denial of service or elevated privileges.
## Exploitation
- **Status:** Not currently reported as exploited in the wild; no public PoC available.
- **Complexity:** Low to Medium.
- **Attack Vector:** Local (Requires local access to the machine).
## Impact
- **Confidentiality:** Low
- **Integrity:** High (Ability to modify system files)
- **Availability:** High (Potential for system instability or file deletion)
## Remediation
### Patches
Dell recommends updating to the following versions immediately:
- **Dell Display and Peripheral Manager (Mac):** Update to version **2.3.0.1005** or later.
- **Dell Monitor Driver:** Update to version **1.0.0.0** or later.
### Workarounds
- **Least Privilege:** Ensure users do not have administrative rights unless absolutely necessary to limit the impact of local exploits.
- **Access Control:** Restrict ability for non-privileged users to create symbolic links where possible (though often difficult in default OS configurations).
## Detection
- **Indicators of Compromise:** Unusual file system activity in system directories originating from DDPM processes. Unexpected creation of symbolic links in temporary directories (`/tmp` or `C:\Windows\Temp`).
- **Detection methods and tools:** Monitor system logs for unauthorized privilege escalation attempts or "Access Denied" errors related to system-level drivers.
## References
- **Dell Security Advisory DSA-2026-295:** hxxps[://]www[.]dell[.]com/support/kbdoc/en-us/000481265/dsa-2026-295
- **Dell Security Advisory DSA-2026-319:** hxxps[://]www[.]dell[.]com/support/kbdoc/en-us/000490035/dsa-2026-319-security-updates-for-dell-display-and-peripheral-manager-ddpm-mac-for-multiple-vulnerabilities
- **Cyber Centre Advisory:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/dell-security-advisory-av26-771