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CVE-2023-31814

29
FAUCET Score

CVE-2023-31814 is a critical file inclusion vulnerability affecting D-Link DIR-300 routers running firmware versions up to REVA1.06 and REVB2.06. This flaw allows unauthenticated attackers to remotely execute arbitrary code due to improper handling of the /model/__lang_msg.php file. With a CVSS score of 9.8 (Critical), exploitation requires no user interaction and can lead to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating potential interest from threat actors.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.06CPE matchmatch criteria
cpe:2.3:o:dlink:dir-300_firmware:*:*:*:*:*:*:*:*
<= 2.06CPE matchmatch criteria
cpe:2.3:o:dlink:dir-300_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 40th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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