What is CVE-2023-31814?

CVE-2023-31814 is a critical-severity vulnerability in Dlink Dir-300, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 9.8/10. Published 2023-05-23.

How severe is CVE-2023-31814?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Dlink Dir-300

CVE-2023-31814

D-Link DIR-300 firmware <=REVA1.06 and <=REVB2.06 is vulnerable to File inclusion via /model/__lang_msg.php.

Published 2023-05-23 · last modified 2026-06-17.

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: 0.009 (58.5th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.5% 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: 0.009 · change: 0.000

Affected products

Dlink Dir-300 — versions a, b
Dlink Dir-300 Firmware

Weakness classification (CWE)

CWE-706 — Use of Incorrectly-Resolved Name or Reference

References

www.dlink.com/en/security-bulletin/ (Product)
gist.github.com/1915504804/9503198d3cbd5bc7db47625ac0caaade (Third Party Advisory)

Frequently asked questions

What is CVE-2023-31814?: CVE-2023-31814 is a critical-severity vulnerability in Dlink Dir-300, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 9.8/10. Published 2023-05-23.
How severe is CVE-2023-31814?: Critical severity. CVSS v3 base score is 9.8 out of 10.