CVE-2026-85223

CRITICAL 9.9

D-Link DNS-340L CGI dropbox.cgi os command injection

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was found in D-Link DNS-340L 1.01B04. Affected by this issue is some unknown functionality of the file /cgi-bin/dropbox.cgi of the component CGI Handler. Performing a manipulation of the argument callback_url/sync_interval results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

CWE	CWE-78 CWE-77
Vendor	d-link
Product	dns-340l
Published	Sep 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

D-Link / DNS-340L

1.01B04

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/398422 vuldb.com: https://vuldb.com/vuln/398422/cti vuldb.com: https://vuldb.com/cve/CVE-2026-85223 vuldb.com: https://vuldb.com/submit/894213 github.com: https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-008-vulndb.md dlink.com: https://www.dlink.com/

Credits

🔍 ST4R0001 (VulDB User)