CVE-2026-40118 Information disclosure in UDP Console
Arcserve UDP Console may disclose information if a user configures an activation server to a dummy URL, causing unintended communication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-40118?
CVE-2026-40118 is a medium-severity vulnerability in Arcserve UDP Console, published on 16 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
UDP Console provided by Arcserve contains an incorrectly specified destination in a communication channel vulnerability. When a user configures an activation server hostname of the affected product to a dummy URL, the product may unintentionally communicate with the dummy domain, causing information disclosure.
Weakness: CWE-941
Which versions are affected by CVE-2026-40118?
How do I fix CVE-2026-40118?
No fix has been published for CVE-2026-40118 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-40118 being exploited?
There is no known exploitation of CVE-2026-40118 in the wild and no public exploit code.
Sources
Also known as GHSA-rhf4-34xg-3v3j.