CVE-2019-20753 Memory corruption in n/a

High 8.8 Published Updated

Unauthenticated attackers can execute arbitrary code via a stack-based buffer overflow in various NETGEAR router models.

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-2019-20753?

CVE-2019-20753 is a high-severity memory corruption vulnerability in Netgear D6220 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 unauthenticated attacker. This affects DGN2200v1 before 1.0.0.58, D8500 before 1.0.3.42, D7000v2 before 1.0.0.51, D6400 before 1.0.0.78, D6220 before 1.0.0.44, JNDR3000 before 1.0.0.24, R8000 before 1.0.4.18, R8500 before 1.0.2.122, R8300 before 1.0.2.122, R7900 before 1.0.2.16, R7000P before 1.3.2.34, R7300DST before 1.0.0.68, R7100LG before 1.0.0.46, R6900P before 1.3.2.34, R7000 before 1.0.9.28, R6900 before 1.0.1.46, R6700 before 1.0.1.46, R6400v2 before 1.0.2.56, R6400 before 1.0.1.42, R6300v2 before 1.0.4.28, R6250 before 1.0.4.26, WNDR3400v3 before 1.0.1.22, WNDR4500v2 before 1.0.0.72, and WNR3500Lv2 before 1.2.0.50.

Weakness: CWE-787

Which versions are affected by CVE-2019-20753?

It affects 23 products.

Products include Netgear D6220 Firmware, Netgear D6400 Firmware, Netgear D7000 Firmware, Netgear D8500 Firmware, Netgear Dgn2200 Firmware, Netgear Jndr3000 Firmware and 17 more.

How do I fix CVE-2019-20753?

No fix has been published for CVE-2019-20753 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-2019-20753 being exploited?

There is no known exploitation of CVE-2019-20753 in the wild and no public exploit code.

All Netgear D6220 Firmware vulnerabilities

Sources

Also known as GHSA-52f4-cjg2-mpf2.

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