Threats Tagged 'cve-2025-8860'
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Threats Tagged 'cve-2025-8860'
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A flaw was found in QEMU in the uefi-vars virtual device. When the guest writes to register UEFI_VARS_REG_BUFFER_SIZE, the .write callback `uefi_vars_write` is invoked. The function allocates a heap buffer without zeroing the memory, leaving the buffer filled with residual data from prior allocations. When the guest later reads from register UEFI_VARS_REG_PIO_BUFFER_TRANSFER, the .read callback `uefi_vars_read` returns leftover metadata or other sensitive process memory from the previously allocated buffer, leading to an information disclosure vulnerability. Join the discussion | CVE Database V5 | 02/18/2026, 20:49:06 UTC Added: 02/18/2026, 21:11:15 UTC |
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