CVE-2026-4209

2.1 LOW 7% exploit odds No fix listed Injection Network gear

What it is

A vulnerability was identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected is the function cgi_create_import_users/cgi_user_batch_create/cgi_user_set_quota/cgi_user_del/cgi_user_modify/cgi_group_set_quota/cgi_group_modify/cgi_group_add/cgi_user_add/cgi_get_modify_group_info/cgi_chg_admin_pw of the file /cgi-bin/account_mgr.cgi. The manipulation leads to command injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. Limited direct impact.
Exploit odds: 6.8% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-03-16 14:20 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 10:56 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 6.8% in the next 30 days (EPSS).
Severity: 2.1 LOW (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2026-03-16 14:20 UTC
Last modified: 2026-06-17 10:56 UTC
Exploit probability: 6.8% · EPSS, next 30 days
Weakness: CWE-74
Record status: Analyzed

Affected

Dlink dnr-202l Firmware ≤ 2026-02-05
Dlink dnr-326 Firmware ≤ 2026-02-05
Dlink dns-1100-4 Firmware ≤ 2026-02-05
Dlink dns-120 Firmware ≤ 2026-02-05
Dlink dns-1200-05 Firmware ≤ 2026-02-05
Dlink dns-1550-04 Firmware ≤ 2026-02-05
Dlink dns-315l Firmware ≤ 2026-02-05
Dlink dns-320 Firmware ≤ 2026-02-05

Attack profile CVSS 4.0 · 2.1

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: Low
User interaction: None
Confidentiality: Low
Integrity: Low
Availability: Low

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Is it in your code?

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References

NVD record · CVE.org record