Threats Tagged 'cve-2026-89621'
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Threats Tagged 'cve-2026-89621'
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A vulnerability in the Linux kernel's HID driver for MCP2221 devices was resolved. The function mcp2221_raw_event() did not validate the size of incoming HID reports, allowing a malicious USB device to send a crafted report that causes out-of-bounds memory reads. This could lead to leakage of uninitialized kernel memory to userspace via the I2C/SMBus read path. The fix involved adding size validation checks before copying data from the report. Join the discussion | GCVE Database | 09/11/2026, 21:31:34 UTC Added: 09/12/2026, 00:42:49 UTC |
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