CVE-2018-21111 Memory corruption in n/a
Authenticated attackers can trigger a stack-based buffer overflow in NETGEAR routers, potentially leading to arbitrary code execution or privilege escalation.
- 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-2018-21111?
CVE-2018-21111 is a medium-severity memory corruption vulnerability in Netgear D3600 Firmware, published on 22 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 D3600 before 1.0.0.75, D6000 before 1.0.0.75, D6100 before 1.0.0.60, R7800 before 1.0.2.52, R8900 before 1.0.4.2, R9000 before 1.0.4.2, WNDR3700v4 before 1.0.2.102, WNDR4300 before 1.0.2.104, WNDR4300v2 before 1.0.0.58, WNDR4500v3 before 1.0.0.58, and WNR2000v5 before 1.0.0.66.
Weakness: CWE-787
Which versions are affected by CVE-2018-21111?
It affects 10 products.
Products include Netgear D3600 Firmware, Netgear D6000 Firmware, Netgear D6100 Firmware, Netgear R7800 Firmware, Netgear R8900 Firmware, Netgear R9000 Firmware and 4 more.
How do I fix CVE-2018-21111?
No fix has been published for CVE-2018-21111 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-2018-21111 being exploited?
There is no known exploitation of CVE-2018-21111 in the wild and no public exploit code.
Other vulnerabilities in Netgear D3600 Firmware
Sources
Also known as GHSA-4r2q-5ff4-r8pg.