CVE-2026-4205
D-Link
- Published
- 16 March 2026
- Last modified
- 17 June 2026
- CVSS
- 2.1 v4.0
- Severity
- low
- EPSS
- 3.8% (89th pct)
- CISA KEV
- Not listed
- NVD status
- Analyzed
- Weaknesses
- CWE-74, CWE-77
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
Description
A vulnerability has been found 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. The impacted element is the function cgi_refresh_db/FTP_Server_BlockIP_Add/FTP_Server_BlockIP_Del of the file /cgi-bin/app_mgr.cgi. Such manipulation leads to command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 3.8% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| DNR-202L | D-Link | unknown | <= 2026-02-05 |
| DNR-326 | D-Link | unknown | <= 1.40b03, <= 2026-02-05 |
References
- https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_131/131.md exploit
- https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_132/132.md exploit
- https://vuldb.com/?ctiid.351117
- https://vuldb.com/?id.351117 third-party
- https://vuldb.com/?submit.770410 third-party
- https://vuldb.com/?submit.770411 third-party
- https://vuldb.com/?submit.770412 third-party
- https://www.dlink.com/
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.