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 b…
Vulnerability class: Buffer Overflow
EPSS: 0.076 (92.0th 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/E:P/RL:X/RC:R.
Affected products
- D-link Dir-825 — versions 2.0, 2.1, 2.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- VDB-324787 | D-Link DIR-825 apply.cgi sub_4106d4 buffer overflow (vdb-entry, technical-description)
- VDB-324787 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #652047 | D-Link DIR-825 Rev.B 2.10 Buffer Overflow (third-party-advisory)
- github.com/panda666-888/vuls/blob/main/d-link/dir-825/apply.cgi.md (related)
- github.com/panda666-888/vuls/blob/main/d-link/dir-825/apply.cgi.md (exploit)
- www.dlink.com/ (product)
Frequently asked questions
- What is CVE-2025-10666?
- CVE-2025-10666 is a high-severity vulnerability in D-link Dir-825, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). 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.