Buffer overflow in Dlink Dir-816
CVE-2025-61577
D-Link DIR-816A2_FWv1.10CNB05 was discovered to contain a stack overflow via the statuscheckpppoeuser parameter in the dir_setWanWifi function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Vulnerability class: Buffer Overflow
EPSS: 0.053 (91.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Dlink Dir-816 — versions a2
- Dlink Dir-816_firmware — versions 1.10cnb05
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-61577?
- CVE-2025-61577 is a high-severity vulnerability in Dlink Dir-816, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-10-09.
- How severe is CVE-2025-61577?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-61577 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.