CVE-2023-41963 Denial of service in GC-A22W-CW

High 7.5 Published Updated

Remote unauthenticated attackers can cause denial of service in JTEKT HMI devices by sending crafted packets to the FTP service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-41963?

CVE-2023-41963 is a high-severity denial of service vulnerability in JTEKT ELECTRONICS CORPORATION GC-A22W-CW, published on 12 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Denial-of-service (DoS) vulnerability exists in FTP service of HMI GC-A2 series. If a remote unauthenticated attacker sends a specially crafted packets to specific ports, a denial-of-service (DoS) condition may occur.

Weakness: CWE-400

Which versions are affected by CVE-2023-41963?

It affects 10 products.

Products include Jtekt Gc-A22w-Cw Firmware, Jtekt Gc-A24-M Firmware, Jtekt Gc-A24 Firmware, Jtekt Gc-A24w-C\(w\) Firmware, Jtekt Gc-A25 Firmware, Jtekt Gc-A26-J2 Firmware and 4 more.

How do I fix CVE-2023-41963?

No fix has been published for CVE-2023-41963 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-41963 being exploited?

There is no known exploitation of CVE-2023-41963 in the wild and no public exploit code.

Sources

Also known as GHSA-8q46-8c27-mjgg.

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