CVE-2022-26373
hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 9, 2022
Updated · June 28, 2026
Description
A flaw was found in hw. In certain processors with Intel's Enhanced Indirect Branch Restricted Speculation (eIBRS) capabilities, soon after VM exit or IBPB command event, the linear address following the most recent near CALL instruction prior to a VM exit may be used as the Return Stack Buffer (RSB) prediction.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor