CVE-2018-21220 Memory corruption in n/a
Unauthenticated attackers can exploit a buffer overflow in various NETGEAR routers to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-21220?
CVE-2018-21220 is a high-severity memory corruption vulnerability in Netgear D3600 Firmware, published on 28 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 buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, D6100 before 1.0.0.56, D7800 before 1.0.1.30, R6100 before 1.0.1.20, R7500 before 1.0.0.118, R7500v2 before 1.0.3.24, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62.
Weakness: CWE-120
Which versions are affected by CVE-2018-21220?
It affects 11 products.
Products include Netgear D3600 Firmware, Netgear D6000 Firmware, Netgear D6100 Firmware, Netgear D7800 Firmware, Netgear R6100 Firmware, Netgear R7500 Firmware and 5 more.
How do I fix CVE-2018-21220?
No fix has been published for CVE-2018-21220 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-2018-21220 being exploited?
There is no known exploitation of CVE-2018-21220 in the wild and no public exploit code.
Other vulnerabilities in Netgear D3600 Firmware
Sources
Also known as GHSA-w4jq-6fj6-wp24.