CVE-2025-10666: D-Link DIR-825 apply.cgi sub_4106d4 buffer overflow

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-09-18 · updated 2026-06-17
Weakness: CWE-119

Description

A security flaw has been discovered in D-Link DIR-825 up to 2.10. Affected by this vulnerability is the function sub_4106d4 of the file apply.cgi. The manipulation of the argument countdown_time results in buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be exploited. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

D-Link DIR-825: through 2.10

References

https://github.com/panda666-888/vuls/blob/main/d-link/dir-825/apply.cgi.md
https://github.com/panda666-888/vuls/blob/main/d-link/dir-825/apply.cgi.md#poc
https://vuldb.com/?ctiid.324787
https://vuldb.com/?id.324787
https://vuldb.com/?submit.652047
https://www.dlink.com/
https://www.exploit-db.com/exploits/52469
https://github.com/panda666-888/vuls/blob/main/d-link/dir-825/apply.cgi.md
https://github.com/panda666-888/vuls/blob/main/d-link/dir-825/apply.cgi.md#poc

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