CVE-2023-39637
CWE-77Published: September 12, 2023· Updated: Jul 9, 2026
Official Description
D-Link DIR-816 A2 1.10 B05 was discovered to contain a command injection vulnerability via the component /goform/Diagnosis.
Risk Analysis
D-Link DIR-816 firmware version 1.10 B05 contains a command injection vulnerability that allows unauthenticated remote code execution. This is a critical issue with a CVSS score of 9.8.
There is no public exploit known, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low complexity.
Upgrade the device firmware to a version that addresses this vulnerability. If no patch is available, restrict management interface access to internal networks.
Technical Analysis
CVE-2023-39637 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-39637 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts