CVE-2025-26598High· 7.8▾ TwilightAn out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the c…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
0.4% → 0.4%
An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access.
tigervncx_server < 21.1.16xwayland < 24.1.6enterprise_linux = 7.0enterprise_linux = 8.0enterprise_linux = 9.0Upgrade past the affected range:
x_server 21.1.16xwayland 24.1.6Connected by shared product, vendor, weakness, or advisory.
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CVE-2025-26597High· 7.8A buffer overflow flaw was found in X.Org and Xwayland