CVE-2021-27114 Memory corruption in n/a
A stack-based buffer overflow in the D-Link DIR-816 router allows attackers to overwrite the return address and potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-27114?
CVE-2021-27114 is a critical memory corruption vulnerability in Dlink Dir-816 Firmware, published on 14 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-787
Which versions are affected by CVE-2021-27114?
It affects 1 product.
Products include Dlink Dir-816 Firmware.
How do I fix CVE-2021-27114?
No fix has been published for CVE-2021-27114 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-27114 being exploited?
There is no known exploitation of CVE-2021-27114 in the wild and no public exploit code.
Other vulnerabilities in Dlink Dir-816 Firmware
Sources
Also known as GHSA-h8c7-76x8-mr96.