A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.
CVE ID: CVE-2025-26597
Vendor: Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat
Product: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9
EPSS Score: 0.02% (probability of being exploited)
EPSS Percentile: 3.54% (scored less or equal to compared to others)
EPSS Date: 2025-03-26 (when was this score calculated)