Unity - RCE (CVE-2025-36604)
Description
Dell Unity, version(s) 5.5 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to arbitrary command execution.
psychologyCrowdSec Analysis
CVE-2025-36604 is an OS command injection vulnerability in Dell Unity versions 5.5 and earlier, allowing unauthenticated remote attackers to execute arbitrary commands on the affected system. This flaw could be leveraged to compromise system integrity, access sensitive data, or disrupt storage operations, posing a significant risk to enterprise environments.
CrowdSec has been tracking this vulnerability and its exploits since 9th of October 2025.
According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2025-36604 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. CrowdSec network telemetry also shows that exploitation of CVE-2025-36604 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.
Attackers exploit this vulnerability by sending specially crafted requests to URLs containing /misc/ with injected backticks and command substitution (e.g., ``/misc/`curl${IFS}```), targeting Dell UnityVSA systems to achieve remote command execution.
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| Event | Date |
|---|---|
| CVE Published | 2025-08-04 |
| Rule Released | 2025-10-09 |
| CrowdSec First Seen | 2025-10-09 |
Remediation & Protection
External References
- https://www.dell.com/support/kbdoc/en-si/000350756/dsa-2025-281-security-update-for-dell-unity-dell-unityvsa-and-dell-unity-xt-security-update-for-multiple-vulnerabilities
- https://labs.watchtowr.com/its-never-simple-until-it-is-dell-unityvsa-pre-auth-command-injection-cve-2025-36604/
- https://github.com/watchtowrlabs/watchTowr-vs-Dell-UnityVSA-PreAuth-CVE-2025-36604
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-36604.yaml