Buffer overflow in D-Link Dir-825
CVE-2025-10666
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.
Vulnerability class: Buffer Overflow
EPSS: 0.033 (87.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- D-link Dir-825 — versions 2.0, 2.1, 2.2
- Dlink Dir-825
- Dlink Dir-825_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (related, Exploit, Third Party Advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-10666?
- CVE-2025-10666 is a high-severity vulnerability in D-Link Dir-825, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-09-18.
- How severe is CVE-2025-10666?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-10666 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.