RCE in Dlink Dir-816
CVE-2025-45931
An issue D-Link DIR-816-A2 DIR-816A2_FWv1.10CNB05_R1B011D88210 allows a remote attacker to execute arbitrary code via system() function in the bin/goahead file
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.001
Affected products
- Dlink Dir-816 — versions a2
- Dlink Dir-816 Firmware — versions 1.10cnb05_r1b011d88210
Weakness classification (CWE)
References
- d-link.com (Product)
- www.dlink.com/en/security-bulletin/ (Vendor Advisory)
- dir-816-a2.com (Broken Link)
- github.com/Synmac05/CVE-advisories/blob/main/CVE-2025-45931.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-45931?
- CVE-2025-45931 is a critical-severity vulnerability in Dlink Dir-816, classified under Command Injection. CVSS score: 9.8/10. Published 2025-06-30.
- How severe is CVE-2025-45931?
- Critical severity. CVSS v3 base score is 9.8 out of 10.