RCE in D-Link Dnr-202l
CVE-2026-4210
A security flaw has been discovered 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 by this vulnerability is the function cgi_tm_set_share of the file /cgi-bin/time_machine.cgi. The manipulation of the argument Name results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
EPSS: 0.039 (89.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- D-link Dnr-202l — versions 20260205
- D-link Dnr-322l — versions 20260205
- D-link Dnr-326 — versions 20260205
- D-link Dns-1100-4 — versions 20260205
- D-link Dns-120 — versions 20260205
- D-link Dns-1200-05 — versions 20260205
- D-link Dns-1550-04 — versions 20260205
- D-link Dns-315l — versions 20260205
- D-link Dns-320 — versions 20260205
- D-link Dns-320l — versions 20260205
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product, broken-link)
Frequently asked questions
- What is CVE-2026-4210?
- CVE-2026-4210 is a medium-severity vulnerability in D-Link Dnr-202l, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-03-16.
- How severe is CVE-2026-4210?
- Medium severity. CVSS v3 base score is 6.3 out of 10.