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CVE-2022-39189

HIGH
7.8
CVSS Score
Published: September 2, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:57 AM UTC
2 products affected across 2 vendorsLinux KernelHci Baseboard Management Controller

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
4.16 ≤ v < 5.4.2445.11 ≤ v < 5.15.605.16 ≤ v < 5.18.175.5.0 ≤ v < 5.10.180
Affected range stops below 5.10.180, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.60, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.18.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.244, so it looks safe — our inference, not a vendor statement
Hci Baseboard Management Controller· NetAppdrupal
95%
h300sh410ch410sh500sh700s

References (7)

Issue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugs.chromium.org/p/project-zero/issues/detail?id=2309
PatchRelease NotesVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17
PatchVendor Advisory
Source: [email protected]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736
PatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20230214-0007/
Vendor AdvisoryThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.debian.org/security/2023/dsa-5480

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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