Description
A weakness has been identified 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 issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
E
Physical
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
E
Physical
RL
X
RC
Required
Affected products
- D-Link / DNR-202L20260205 – 20260205
- D-Link / DNR-322L20260205 – 20260205
- D-Link / DNR-32620260205 – 20260205
- D-Link / DNS-1100-420260205 – 20260205
- D-Link / DNS-12020260205 – 20260205
- D-Link / DNS-1200-0520260205 – 20260205
- D-Link / DNS-1550-0420260205 – 20260205
- D-Link / DNS-315L20260205 – 20260205
- D-Link / DNS-32020260205 – 20260205
- D-Link / DNS-320L20260205 – 20260205
- D-Link / DNS-320LW20260205 – 20260205
- D-Link / DNS-32120260205 – 20260205
- D-Link / DNS-32320260205 – 20260205
- D-Link / DNS-32520260205 – 20260205
- D-Link / DNS-32620260205 – 20260205
- D-Link / DNS-327L20260205 – 20260205
- D-Link / DNS-340L20260205 – 20260205
- D-Link / DNS-34320260205 – 20260205
- D-Link / DNS-34520260205 – 20260205
- D-Link / DNS-726-420260205 – 20260205