CVE-2021-29296

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-10 · updated 2026-06-17
Weakness: CWE-476

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

Affected products

D-Link DIR-825: 2.10b02

References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10212
https://www.dlink.com/en/security-bulletin/
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10212
https://www.dlink.com/en/security-bulletin/

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