CVE-2024-42420 Denial of service in Sharp Digital Full-color MFPs and Monochrome MFPs

High 7.5 Published 25 Oct 2024 Updated 25 Oct 2024

Attackers can crash Sharp and Toshiba multifunction printers by sending crafted HTTP requests, requiring vendor patches to restore 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-2024-42420?

CVE-2024-42420 is a high-severity denial of service vulnerability in Sharp Digital Full-color MFPs and Monochrome MFPs, published on 25 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Sharp and Toshiba Tec MFPs contain multiple Out-of-bounds Read vulnerabilities, due to improper processing of keyword search input and improper processing of SOAP messages. Crafted HTTP requests may cause affected products crashed.

Weakness: CWE-125

Which versions are affected by CVE-2024-42420?

It affects 320 products.

Products include Sharp Bp-30c25 Firmware, Sharp Bp-30c25t Firmware, Sharp Bp-30c25y Firmware, Sharp Bp-30c25z Firmware, Sharp Bp-30m28 Firmware, Sharp Bp-30m28t Firmware and 314 more.

How do I fix CVE-2024-42420?

No fix has been published for CVE-2024-42420 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-2024-42420 being exploited?

There is no known exploitation of CVE-2024-42420 in the wild and no public exploit code.

Sources

Also known as GHSA-25xc-32vr-fm66.