CVE-2023-39637

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 75.3% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-07-09.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-09-12 00:00Z2 YR AGO

Last updated

2026-07-09 00:27Z1 MO AGO

Reserved

2023-08-07

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class

Data version

5.2

Document digest

f9edf5d83d419706b6419257c22c277c788a2029d46c3d85eadb66e61bf5d7f1

• www.dlink.comhttps://www.dlink.com/en/security-bulletin/
• www.dlink.com.cnhttp://www.dlink.com.cn/techsupport/ProductInfo.aspx?m=DIR-816
• github.comhttps://github.com/mmmmmx1/dlink/blob/main/DIR-816/readme.md