CVE-2023-30456

mediumpriority · track · 26OT risk · elevatedEPSS 0.005 · 40 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.47% (40th) EPSS
CVSS 6.5 · medium
Is it mine?
54 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

6.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2 · impact 4
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.16.5mediumAV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hsecondaryexploitability 2 · impact 4
v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.16mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-311USCWE-311USCWE-399USCWE-754US
05

affected products (54)

Products and version ranges known to be affected.

showing 20 of 54
06

advisories (4)

Vendor and ecosystem advisories describing this.

  • SSA-806742SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.42024-02-13csaf · siemens_psirtDE

    SCALANCE XCM-/XRM-300 before V2.4 is affected by multiple vulnerabilities. Siemens has released an update for SCALANCE X-300 and recommends to update to the latest version.

  • WID-SEC-W-2023-0911Linux Kernel KVM: Schwachstelle ermöglicht nicht spezifizierten AngriffDeutsch2023-04-10csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel KVM ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

  • WID-SEC-W-2024-1086IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2024-05-09csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren, seine Privilegien zu erweitern, einen Cross-Site-Scripting (XSS)-Angriff durchzuführen oder einen nicht spezifizierten Angriff auszuführen.

  • ICSA-24-046-11Siemens SCALANCE XCM-/XRM-3002024-02-13icsa · cisa_csaf_otUS

    SCALANCE XCM-/XRM-300 before V2.4 is affected by multiple vulnerabilities. Siemens has released an update for SCALANCE X-300 and recommends to update to the latest version.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
published 2023-04-10modified 2026-10-08
09

references (28)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan