CVE-2026-63028

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 45/100
Published: 2026-11-10 Modified: 2026-11-12 First seen: 2026-11-10 Status: active

Attack Surface

Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: None
S: X
AT: None
VC: None
VI: Low
VA: Low

Description

Improper initialization in the MigTD virtio-vsock stream handling for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow a denial of service. System software adversary with an unauthenticated user combined with a low complexity attack may enable data corruption. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
n/a Intel(R) TDX Migration Trust Domain (MigTD) See references

Bug Bounty Relevance

45 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.1 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.13%
Raw Score 0.001290
Percentile 2.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00129
2026-11-12
0.00129

Intelligence Sources

mitre ref →
nvd ref →