CVE-2026-124011 Dixell/Copeland XWEB EVO Information Disclosure via sysinfo.lua
Unauthenticated attackers can read MAC and clock from XWEB EVO sysinfo.lua, derive the password offline, and gain unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-124011?
CVE-2026-124011 is a medium-severity information disclosure vulnerability in Copeland XWEB EVO, published on 12 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
XWEB EVO 5.6.2 through 5.8.8 contains an information disclosure vulnerability that allows unauthenticated attackers to obtain the device's eth0 MAC address and system clock by accessing sysinfo.lua, which also feeds the pre-login page. Attackers can use the disclosed MAC address and system clock values to offline derive the MAC-based daily password, enabling unauthorized authentication to the device. This product line reached it's end of service date in March 2026.
Weakness: CWE-497
Which versions are affected by CVE-2026-124011?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-124011?
No fix has been published for CVE-2026-124011 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate any secrets that may have been exposed. More about Information disclosure.
Is CVE-2026-124011 being exploited?
There is no known exploitation of CVE-2026-124011 in the wild and no public exploit code.
Sources
Also known as GHSA-ph6q-p974-r2rr.