CVEvulnerability

CVE-2026-5211

7.4 HIGH Published 2026-03-31 Modified 2026-07-24 Official page ↗
Status
Analyzed
Published
2026-03-31
Last modified
2026-07-24
Assigner
[email protected]
CVSS 4.0 ([email protected])
7.4 HIGH — 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
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C
Weaknesses
CWE-119, CWE-121, CWE-787

Description

A flaw 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 vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.

Affected configurations

• dlink dnr-202l firmware (<= 2026-02-05) • dlink dnr-326 firmware (<= 2026-02-05) • dlink dns-1100-4 firmware (<= 2026-02-05) • dlink dns-120 firmware (<= 2026-02-05) • dlink dns-1200-05 firmware (<= 2026-02-05) • dlink dns-1550-04 firmware (<= 2026-02-05) • dlink dns-315l firmware (<= 2026-02-05) • dlink dns-320 firmware (<= 2026-02-05) • dlink dns-320l firmware (<= 2026-02-05) • dlink dns-320lw firmware (<= 2026-02-05) • dlink dns-321 firmware (<= 2026-02-05) • dlink dns-322l firmware (<= 2026-02-05) • dlink dns-323 firmware (<= 2026-02-05) • dlink dns-325 firmware (<= 2026-02-05) • dlink dns-326 firmware (<= 2026-02-05) • dlink dns-327l firmware (<= 2026-02-05) • dlink dns-340l firmware (<= 2026-02-05) • dlink dns-343 firmware (<= 2026-02-05) • dlink dns-345 firmware (<= 2026-02-05) • dlink dns-726-4 firmware (<= 2026-02-05)

Related

Weakness · CWE (3)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
  • CWE-121 Stack-based Buffer Overflow weakness
  • CWE-787 Out-of-bounds Write weakness

References