CVE-2025-26595highCWE-121

CVE-2025-26595: falha de alta gravidade em xserver

Xorg: xwayland: buffer overflow in xkbvmodmasktext()

Publicada em 25 fev 2025 · Atualizada em 04 nov 2026

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21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 7.8epss 0.4%

A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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