CVE-2025-8860 (GCVE-0-2025-8860)
Vulnerability from cvelistv5
Published
2026-02-18 20:49
Modified
2026-02-19 14:35
Severity ?
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-212 - Improper Removal of Sensitive Information Before Storage or Transfer
Summary
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.
References
Impacted products
Vendor Product Version
Version: 10.0.0   ≤
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