CVE-2026-4194
Description
A vulnerability was detected 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_set_wto of the file /cgi-bin/system_mgr.cgi. Performing a manipulation results in improper access controls. Remote exploitation of the attack is possible. The exploit is now public and may be used.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dlink dnr-202l_firmware | v ≤ 2026-02-05 | — |
| dlink dnr-326_firmware | v ≤ 2026-02-05 | — |
| dlink dns-1100-4_firmware | v ≤ 2026-02-05 | — |
| dlink dns-120_firmware | v ≤ 2026-02-05 | — |
| dlink dns-1200-05_firmware | v ≤ 2026-02-05 | — |
| dlink dns-1550-04_firmware | v ≤ 2026-02-05 | — |
| dlink dns-315l_firmware | v ≤ 2026-02-05 | — |
| dlink dns-320_firmware | v ≤ 2026-02-05 | — |
| dlink dns-320l_firmware | v ≤ 2026-02-05 | — |
| dlink dns-320lw_firmware | v ≤ 2026-02-05 | — |
| dlink dns-321_firmware | v ≤ 2026-02-05 | — |
| dlink dns-322l_firmware | v ≤ 2026-02-05 | — |
| dlink dns-323_firmware | v ≤ 2026-02-05 | — |
| dlink dns-325_firmware | v ≤ 2026-02-05 | — |
| dlink dns-326_firmware | v ≤ 2026-02-05 | — |
| dlink dns-327l_firmware | v ≤ 2026-02-05 | — |
| dlink dns-340l_firmware | v ≤ 2026-02-05 | — |
| dlink dns-343_firmware | v ≤ 2026-02-05 | — |
| dlink dns-345_firmware | v ≤ 2026-02-05 | — |
| dlink dns-726-4_firmware | v ≤ 2026-02-05 | — |
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Attack Surface Management
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