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Untriaged
Permalink CVE-2026-0665
6.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
created 2 months, 3 weeks ago Activity log
  • Created suggestion 2 months, 3 weeks ago
Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq

An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.

References

Affected products

qemu
  • =<10.2.0
rhcos
qemu-kvm
qemu-kvm-ma
virt:rhel/qemu-kvm

Matching in nixpkgs

pkgs.qemu

Generic and open source machine emulator and virtualizer

pkgs.qemu-user

QEMU User space emulator - launch executables compiled for one CPU on another CPU

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