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.

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)

EPSS: 0.009 (55.4th percentile) — read the EPSS interpretation.

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.

Affected products

Dlink Dir-816 — versions a2
Dlink Dir-816_firmware — versions 1.10cnb05_r1b011d88210
N/a — versions n/a

Weakness classification (CWE)

CWE-77 — Command Injection

References

cve@mitre.org (Product)
cve@mitre.org (Vendor Advisory)
cve@mitre.org (Broken Link)
cve@mitre.org (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.