SecuriTricks - CVE-2026-5212

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.

Product(s) Impacted

Vendor	Product	Versions
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 Dns-1550-04	* * * * * * * * * * * * * * * * * * * *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	d-link	dns-120	/	/	/	/	/	/	/	/
a	d-link	dnr-202l	/	/	/	/	/	/	/	/
a	d-link	dns-315l	/	/	/	/	/	/	/	/
a	d-link	dns-320	/	/	/	/	/	/	/	/
a	d-link	dns-320l	/	/	/	/	/	/	/	/
a	d-link	dns-320lw	/	/	/	/	/	/	/	/
a	d-link	dns-321	/	/	/	/	/	/	/	/
a	d-link	dnr-322l	/	/	/	/	/	/	/	/
a	d-link	dns-323	/	/	/	/	/	/	/	/
a	d-link	dns-325	/	/	/	/	/	/	/	/
a	d-link	dns-326	/	/	/	/	/	/	/	/
a	d-link	dns-327l	/	/	/	/	/	/	/	/
a	d-link	dnr-326	/	/	/	/	/	/	/	/
a	d-link	dns-340l	/	/	/	/	/	/	/	/
a	d-link	dns-343	/	/	/	/	/	/	/	/
a	d-link	dns-345	/	/	/	/	/	/	/	/
a	d-link	dns-726-4	/	/	/	/	/	/	/	/
a	d-link	dns-1100-4	/	/	/	/	/	/	/	/
a	d-link	dns-1200-05	/	/	/	/	/	/	/	/
a	d-link	dns-1550-04	/	/	/	/	/	/	/	/

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_166/166.md

https://vuldb.com/submit/780435

https://vuldb.com/submit/780436

https://vuldb.com/vuln/354348

https://vuldb.com/vuln/354348/cti

https://www.dlink.com/

CVSS Score

7.4 / 10

CVSS Data - 4.0

Attack Vector: NETWORK
Attack Complexity: LOW
Attack Requirements: NONE
Privileges Required: LOW
User Interaction: NONE
Scope:
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH
Exploit Maturity: PROOF_OF_CONCEPT

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

View Vector String

Timeline

Published: March 31, 2026, 9:16 p.m.
Last Modified: April 1, 2026, 2:23 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-5212