Buffer overflow in Dlink Dir-816
CVE-2021-27114
An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the"'s_ip" and "s_mac" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address.
Vulnerability class: Buffer Overflow
EPSS: 0.246 (97.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Dlink Dir-816 — versions a2
- Dlink Dir-816_firmware — versions 1.10b05
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-27114?
- CVE-2021-27114 is a critical-severity vulnerability in Dlink Dir-816, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-04-14.
- How severe is CVE-2021-27114?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-27114 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.