VulnerabilityPublished 18 Oct 2026

CVE-2026-98714: Linux kernel · KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded

Source GCVE Database

Authoritative record:CVE-2026-98714

Not known to be exploited : upgrade to e27fc915c8f575ab5630e27d97465c2077d4b9d1 or 8676b29d186fcb5c1251d8152fc91d19421e5600 when convenient.

Data as of 26 Oct 2026, 14:05 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in e27fc915c8f575ab5630e27d97465c2077d4b9d1, 8676b29d186fcb5c1251d8152fc91d19421e5600

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-rrqj-3q8v-92j9

What to do

Upgrade Linux kernel to e27fc915c8f575ab5630e27d97465c2077d4b9d1 or 8676b29d186fcb5c1251d8152fc91d19421e5600.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 8d28fec406e4d5ce6c109fe12699976e72e9748e, < e27fc915c8f575ab5630e27d97465c2077d4b9d1	Fixed in e27fc915c8f575ab5630e27d97465c2077d4b9d1
LinuxLinux	Affected ≥ 8d28fec406e4d5ce6c109fe12699976e72e9748e, < 8676b29d186fcb5c1251d8152fc91d19421e5600	Fixed in 8676b29d186fcb5c1251d8152fc91d19421e5600
LinuxLinux	Affected =2.6.38	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to update control fields on VMEXIT only if VMRUN succeeds. Users should apply the official kernel updates that include this fix. No additional mitigation is required beyond applying the patch.

Description

A vulnerability in the Linux kernel's KVM SVM subsystem was resolved. The issue involved updating control fields on VMEXIT only if the VMRUN instruction succeeded. If VMRUN failed, certain control fields were incorrectly updated, which could lead to inconsistent virtual machine state handling. The fix ensures that control fields remain unchanged if VMRUN fails, aligning with AMD's architectural guidance.

References

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