CVE-2026-1789 Information disclosure in MF842CDW
An administrator can access sensitive device information via crafted requests in the browser-based remote management interface of Canon printers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1789?
CVE-2026-1789 is a medium-severity vulnerability in Canon Inc. MF842CDW, published on 23 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability in the browser-based remote management interface may allow an administrator to access sensitive information on the device via crafted requests, affecting certain production printers and office/small office multifunction printers.
Weakness: CWE-807
Which versions are affected by CVE-2026-1789?
How do I fix CVE-2026-1789?
No fix has been published for CVE-2026-1789 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-1789 being exploited?
There is no known exploitation of CVE-2026-1789 in the wild and no public exploit code.
Sources
Also known as GHSA-jh49-rh44-24pq.