CVE-2018-21093 Memory corruption in n/a
Unauthenticated attackers can trigger a stack-based buffer overflow in NETGEAR routers to execute arbitrary code.
- 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-2018-21093?
CVE-2018-21093 is a medium-severity memory corruption vulnerability in Netgear D8500 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 unauthenticated attacker. This affects D8500 before 1.0.3.42, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300-2CXNAS before 1.0.3.60, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R7100LG before 1.0.0.46, R7300 before 1.0.0.68, R7900 before 1.0.2.10, R8000 before 1.0.4.18, R8000P before 1.3.0.10, R7900P before 1.3.0.10, R8500 before 1.0.2.122, R8300 before 1.0.2.122, RBW30 before 2.1.2.6, WN2500RPv2 before 1.0.0.54, and WNR3500Lv2 before 1.2.0.56.
Weakness: CWE-787
Which versions are affected by CVE-2018-21093?
It affects 30 products.
Products include Netgear D8500 Firmware, Netgear Ex3700 Firmware, Netgear Ex3800 Firmware, Netgear Ex6000 Firmware, Netgear Ex6100 Firmware, Netgear Ex6120 Firmware and 24 more.
How do I fix CVE-2018-21093?
No fix has been published for CVE-2018-21093 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-2018-21093 being exploited?
There is no known exploitation of CVE-2018-21093 in the wild and no public exploit code.
Other vulnerabilities in Netgear D8500 Firmware
Sources
Also known as GHSA-wgrg-fgrg-92cc.