CVE-2018-21171 Memory corruption in n/a
An authenticated attacker can trigger a stack-based buffer overflow in NETGEAR routers, potentially leading to arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-21171?
CVE-2018-21171 is a medium-severity memory corruption vulnerability in Netgear D6100 Firmware, published on 27 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.
Weakness: CWE-787
Which versions are affected by CVE-2018-21171?
It affects 5 products.
Products include Netgear D6100 Firmware, Netgear R7800 Firmware, Netgear R9000 Firmware, Netgear Wndr3700 Firmware, Netgear Wndr4300 Firmware.
How do I fix CVE-2018-21171?
No fix has been published for CVE-2018-21171 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-2018-21171 being exploited?
There is no known exploitation of CVE-2018-21171 in the wild and no public exploit code.
Other vulnerabilities in Netgear D6100 Firmware
Sources
Also known as GHSA-chgg-c582-67cw.