CVE-2019-20747 Memory corruption in n/a
Authenticated attackers can trigger a stack-based buffer overflow in NETGEAR routers to execute arbitrary code or escalate privileges.
- 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-2019-20747?
CVE-2019-20747 is a medium-severity memory corruption vulnerability in Netgear D6100 Firmware, published on 16 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 1.0.0.58, D7800 before 1.0.1.40, R7500v2 before 1.0.3.34, R7800 before 1.0.2.52, R8900 before 1.0.4.2, R9000 before 1.0.3.16, RAX120 before 1.0.0.74, RBK20 before 2.3.0.22, RBR20 before 2.3.0.22, RBS20 before 2.3.0.22, RBK50 before 2.3.0.22, RBR50 before 2.3.0.22, RBS50 before 2.3.0.22, RBK40 before 2.3.0.22, RBS40 before 2.3.0.22, SRK60 before 2.2.0.64, SRR60 before 2.2.0.64, SRS60 before 2.2.0.64, WNDR3700v4 before 1.0.2.102, WNDR4300 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, and WNR2000v5 before 1.0.0.66.
Weakness: CWE-787
Which versions are affected by CVE-2019-20747?
It affects 22 products.
Products include Netgear D6100 Firmware, Netgear D7800 Firmware, Netgear R7500 Firmware, Netgear R7800 Firmware, Netgear R8900 Firmware, Netgear R9000 Firmware and 16 more.
How do I fix CVE-2019-20747?
No fix has been published for CVE-2019-20747 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-2019-20747 being exploited?
There is no known exploitation of CVE-2019-20747 in the wild and no public exploit code.
Other vulnerabilities in Netgear D6100 Firmware
Sources
Also known as GHSA-22wf-j8j6-f67g.