CVE-2026-8173 Information Disclosure via 'Copy learned MAC Addresses' Function
Unauthenticated attackers can retrieve logged MAC addresses from the web interface via improper error message generation in Murrelektronik Xelity switches.
- 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-2026-8173?
CVE-2026-8173 is a medium-severity vulnerability in Murrelektronik 6 TX M GE + 4 Power M12 IP67, published on 24 Aug 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
The web GUI of affected Murrelektronik Xelity switches logs MAC addresses from the devices MAC address table when an authenticated administrator uses the 'Copy learned MAC Addresses' function. Due to improper generation of error messages, an unauthenticated attacker with network access to the web interface can retrieve the logged MAC addresses via browser developer tools.
Weakness: CWE-209
Which versions are affected by CVE-2026-8173?
How do I fix CVE-2026-8173?
No fix has been published for CVE-2026-8173 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8173 being exploited?
There is no known exploitation of CVE-2026-8173 in the wild and no public exploit code.
Sources
Also known as GHSA-f42v-6cfh-6pj5.