CVE-2021-29296

HIGH

D-Link DIR-825 2.10b02 - Denial of Service via Null Pointer Dereference in /vct_wan Endpoint

Title source: llm
STIX 2.1

Description

Null Pointer Dereference vulnerability in D-Link DIR-825 2.10b02, which could let a remote malicious user cause a denial of service. The vulnerability could be triggered by sending an HTTP request with URL /vct_wan; the sbin/httpd would invoke the strchr function and take NULL as a first argument, which finally leads to the segmentation fault. NOTE: The DIR-825 and all hardware revisions is considered End of Life and as such this issue will not be patched

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.dlink.com/en/security-bulletin/

Scores

CVSS v3 7.5
EPSS 0.0026
EPSS Percentile 49.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (1)
dlink/dir-825_firmware 2.10b02
Published Aug 10, 2021
Tracked Since Feb 18, 2026