CVE-2019-20740 Memory corruption in n/a
Authenticated attackers can exploit 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
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-20740?
CVE-2019-20740 is a medium-severity memory corruption vulnerability in Netgear R8300 Firmware, published on 16 Apr 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
Weakness: CWE-787
Which versions are affected by CVE-2019-20740?
It affects 5 products.
Products include Netgear Dgn2200 Firmware, Netgear Dgnd2200b Firmware, Netgear R7300 Firmware, Netgear R8300 Firmware, Netgear R8500 Firmware.
How do I fix CVE-2019-20740?
No fix has been published for CVE-2019-20740 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-2019-20740 being exploited?
There is no known exploitation of CVE-2019-20740 in the wild and no public exploit code.
Other vulnerabilities in Netgear R8300 Firmware
Sources
Also known as GHSA-9j2r-7wv5-9gxw.