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.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
2.09%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-09-2023PublishedVulnerability first disclosed.
- 09-07-2026Last 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 versionCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
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 score2.09%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Dlink1 product
- dir-816_firmware1.10b05
1 vendor · 1 product
References
3 links- www.dlink.com/en/security-bulletin/Vendor Advisory
- github.com/mmmmmx1/dlink/blob/main/DIR-816/readme.mdThird Party Advisory