CVE-2025-61553
CVE-2025-61553
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.2EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
16 Oct 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected products
n/a · n/a