Null Pointer Dereference Vulnerability in D-Link DSL-2740R Router
CVE-2021-29294

7.5HIGH

Key Information:

Vendor

D-Link
Status
Dsl-2740r Firmware
Vendor
CVE Published:
10 August 2021

What is CVE-2021-29294?

A null pointer dereference vulnerability exists in the D-Link DSL-2740R router, specifically in the function responsible for handling HNAP requests. A remote attacker could exploit this vulnerability by sending a specially crafted POST request to the HNAP1 endpoint, potentially leading to a denial of service condition. It is important to note that the DSL-2740R and all its hardware revisions have reached their end of life, and thus no patch or fix will be provided for this issue.

References

https://www.dlink.com/en/security-bulletin/
x_refsource_MISC
https://supportannouncement.us.dlink.com/announcement/pub...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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