CVE-2024-5294
D-Link DIR-3040 prog.cgi websSecurityHandler Memory Leak Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of D-Link DIR-3040 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the prog.cgi program, which handles HNAP requests made to the lighttpd webserver listening on ports 80 and 443. The issue results from the lack of proper memory management when processing HTTP cookie values. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. . Was ZDI-CAN-21668.
Published:May 23, 2024
Last Modified:Aug 6, 2025
EPS:May 23, 2024
EPSS Score:0.00115
CVSS Score:6.5
Affected Products
Vendor
Product
Action
Vendor
D-link
Product
Dir-3040
D-link
Dir-3040
Vendor
Dlink
Product
Dir-3040
Dlink
Dir-3040
Vendor
Dlink
Product
Dir-3040 Firmware
Dlink
Dir-3040 Firmware
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
