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CVE-2026-20797mediumCWE-121

Copeland XWEB and XWEB Pro Stack-based Buffer Overflow

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.3epss 0.8%
exploitation probability
0.8%top 46% of all CVEs
observed exploitation
nono source reports it
A stack based buffer overflow exists in an API route of XWEB Pro version 1.12.1 and prior, enabling unauthenticated attackers to cause stack corruption and a termination of the program.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L