VULNERABILITY INTELLIGENCE
CVE-2025-61553
CVSS score8.2 HIGH
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-10-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Description
An out-of-bounds write in VirtIO network device emulation in BitVisor from commit 108df6 (2020-05-20) to commit 480907 (2025-07-06) allows local attackers to cause a denial of service (host hypervisor crash) via a crafted PCI configuration space access. Given it's a heap overflow in a privileged hypervisor context, exploitation may enable arbitrary code execution or guest-to-host privilege escalation.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-122