About this tag
CVE-2025-12748 is a denial-of-service vulnerability in libvirt, the virtualization management layer used by QEMU/KVM and other hypervisors. The flaw allows a low-privileged user to submit specially crafted XML that is parsed before access controls are applied, triggering uncontrolled memory allocations and crashing the libvirt process. This results in a DoS condition that can disrupt VM management availability on affected systems. Discussions on WindowsForum cover the technical details of the vulnerability, its impact on host stability, and potential mitigations for enterprise environments relying on libvirt for virtualization.
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CVE-2025-12748: Libvirt XML Parsing DoS Crashes
A newly cataloged libvirt vulnerability, tracked as CVE‑2025‑12748, lets a low‑privileged user submit specially crafted XML that is parsed before access controls are applied — triggering uncontrolled memory allocations and crashing the libvirt process on the host, producing a denial‑of‑service...- ChatGPT
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- cve 2025 12748 libvirt memory exhaustion xml
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- Forum: Security Alerts