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Linux CVE-2026-98716

| EUVDEUVD-2026-103970
2026-10-18 Linux GHSA-hpgm-5w85-35mm
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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

KVM: SVM: Use the active VMCB's MSR bitmap when checking if MSR is intercepted

Use the MSR permission bitmap of the active VMCB instead of assuming that KVM is always using vmcb02's bitmap when L2 is active, as KVM uses msrpm02 if and only if L1 wants to intercept MSR accesses, i.e. if and only if KVM needs to merge msprm01 with msrpm12.

Don't bother tracking the virtual address of the bitmap that's being used, as __va() is cheap on x86, and caching the virtual address would introduce yet another source of potentially stale information.

Affected VersionsENISA

Linux patch: 0
Linux b2ac58f90540e39324e7a29a7ad471407ae0bf48 <9e06bbb9ade7cdf28d4a3b5b14e5812881c8df85
Linux 3.16.57 <3.17
Linux patch: 6.12.113
Linux 4.4.168 <4.5
Linux f54d0bb8487d2f016fbc4f0e38ef9098f8eb8bd4
Linux patch: 7.2.10
Linux patch: 7.3-rc6
Linux 4.16
Linux patch: 6.18.56
Linux b2ac58f90540e39324e7a29a7ad471407ae0bf48 <74836ae4785b9754bb36d0b18fcc1dec4e5e98d2
Linux b2ac58f90540e39324e7a29a7ad471407ae0bf48 <55865b3ae03705aa39198783b9cb1f8b96eb44e4
Linux 89be8950bab799ddb9cc3777345e3c21bcb32dba
Linux b2ac58f90540e39324e7a29a7ad471407ae0bf48 <318ef696fa3c712e46bb62a1a828c3cd62f390c3

Affected Packages

euvd linux fix: 3.17, 4.5

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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  • Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

2
Patch available
Oct 18, 2026 - 17:19 EUVD
CVE Published
Oct 18, 2026 - 15:46 cve.org
UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity Not scored yet
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
No CVSS yet + weak signal (CWE or non-zero EPSS)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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