CVE-2023-38556 Denial of service in SEIKO EPSON printer Web Config
A remote attacker can turn off the printer due to improper input validation in the Web Config interface.
- 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-2023-38556?
CVE-2023-38556 is a high-severity denial of service vulnerability in SEIKO EPSON printer Web Config, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper input validation vulnerability in SEIKO EPSON printer Web Config allows a remote attacker to turned off the printer. [Note] Web Config is the software that allows users to check the status and change the settings of SEIKO EPSON printers via a web browser. Web Config is pre-installed in some printers provided by SEIKO EPSON CORPORATION. For the details of the affected product names/model numbers, refer to the information provided by the vendor.
Which versions are affected by CVE-2023-38556?
It affects 12 products.
Products include Epson Ep-801a Firmware, Epson Ep-802a Firmware, Epson Ep-901a Firmware, Epson Ep-901f Firmware, Epson Ep-902a Firmware, Epson Pa-Tcu1 Firmware and 6 more.
How do I fix CVE-2023-38556?
No fix has been published for CVE-2023-38556 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-2023-38556 being exploited?
There is no known exploitation of CVE-2023-38556 in the wild and no public exploit code.
Sources
Also known as GHSA-whxf-cw32-jmhm.