9.8

CVE-2023-39637: dlink dir-816_firmware Command Injection

CVSS: 9.8v3.1CriticalModified
Published 12-09-2023Last modified 09-07-2026

Vulnerability summary

CVE-2023-39637 is a critical (CVSS 9.8) Command Injection vulnerability in dlink dir-816_firmware. EPSS estimates a 2.09% chance of exploitation in the next 30 days, higher than 81.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.09%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-09-2023
    PublishedVulnerability first disclosed.
  2. 09-07-2026
    Last modifiedVulnerability information updated.

Description

D-Link DIR-816 A2 1.10 B05 was discovered to contain a command injection vulnerability via the component /goform/Diagnosis.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.09%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

0.00 pp

From 2.09% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.09%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Dlink1 product

1 vendor · 1 product

References

3 links