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. This issue affects the function Webdav_Upload_File of the file /cgi-bin/webdav_mgr.cgi. The manipulation of the argument f_file leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Affected products
dlink: dnr-202l firmware; dlink: dnr-202l; dlink: dnr-326 firmware; dlink: dnr-326; dlink: dns-1100-4 firmware; dlink: dns-1100-4; dlink: dns-120 firmware; dlink: dns-120; dlink: dns-1200-05 firmware; dlink: dns-1200-05; dlink: dns-1550-04 firmware; dlink: dns-1550-04; dlink: dns-315l firmware; dlink: dns-315l; dlink: dns-320 firmware
References6
- github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_166/166.md ExploitThird Party Advisory
- vuldb.com/submit/780435 Third Party AdvisoryVDB Entry
- vuldb.com/submit/780436 Third Party AdvisoryVDB Entry
- vuldb.com/vuln/354348 Third Party AdvisoryVDB Entry
- vuldb.com/vuln/354348/cti Permissions RequiredVDB Entry
- www.dlink.com/ Product
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
7.4
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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 - EPSS — exploit probability
- 1% percentile: 55 · as of 12 November 2026
- CWE
- CWE-119CWE-121CWE-787
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