CVE-2025-55848: Command Injection
Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
AI-suggested
Given the absence of official patches, European organizations should immediately audit their networks to identify the presence of DIR-823 devices running the vulnerable firmware version 20250416. Network segmentation should be enforced to isolate such devices from critical systems. Access to the management interfaces of these devices should be restricted using firewall rules to allow only trusted IP addresses. Employ network intrusion detection/prevention systems (IDS/IPS) with signatures or anomaly detection capable of identifying command injection attempts targeting the 'http_casswd' parameter. Organizations should consider disabling remote management features if not strictly necessary. Monitoring network traffic for unusual outbound connections that may indicate reverse shell activity is critical. Until a vendor patch is available, replacing vulnerable devices with updated or alternative hardware should be considered for high-risk environments. Finally, maintain up-to-date backups and incident response plans to mitigate potential damage from exploitation.
Description
An issue was discovered in DIR-823 firmware 20250416. There is an RCE vulnerability in the set_cassword settings interface, as the http_casswd parameter is not filtered by '&'to allow injection of reverse connection commands.