RCE in Dlink Dir-823x
CVE-2025-55848
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.004 (29.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Dlink Dir-823x
- Dlink Dir-823x_firmware — versions 250416
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-55848?
- CVE-2025-55848 is a high-severity vulnerability in Dlink Dir-823x, classified under Command Injection. CVSS score: 8.8/10. Published 2025-09-26.
- How severe is CVE-2025-55848?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-55848 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.