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QEMU uefi-vars Uninitialized Memory Information Disclosure Vulnerability

🗓️ 04 Sep 2025 00:00:00Reported by Xiaobye(@xiaobye_tw) of DEVCORE Research TeamType 
zdi
 zdi
🔗 www.zerodayinitiative.com👁 4 Views

Local attackers with guest code can disclose uninitialized memory via the uefi-vars device, enabling execution.

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CVE-2025-8860
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CVE-2025-8860 Qemu-kvm: uefi-vars: information disclosure vulnerability in uefi_vars_write callback
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24 Apr 202600:00
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[SECURITY] Fedora 43 Update: qemu-10.1.0-6.fc43
16 Sep 202500:20
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15 Sep 202500:00
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Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50239)
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04 Sep 2025 00:00Current
6Medium risk
Vulners AI Score6
CVSS 35.3
EPSS0.00007
4