VulnerabilityPublished 27 May 2026Updated 6 Nov 2026

CVE-2026-46082: Linux kernel · KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in ee24928ecd85db4b68ed111e91fef36af0ca37b0 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in ee24928ecd85db4b68ed111e91fef36af0ca37b0, ebb63390142c6458fc37758e0892759989cc159f, d99df02ff427f461102230f9c5b90a6c64ee8e23 +4

Exploitation evidence

Disclosed: evidence found.
CVE published 27 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ ff092385e8285c03d8b148f42f46f98c5f4becd5, < ee24928ecd85db4b68ed111e91fef36af0ca37b0	Fixed in ee24928ecd85db4b68ed111e91fef36af0ca37b0
LinuxLinux	Affected ≥ ff092385e8285c03d8b148f42f46f98c5f4becd5, < ebb63390142c6458fc37758e0892759989cc159f	Fixed in ebb63390142c6458fc37758e0892759989cc159f
LinuxLinux	Affected ≥ ff092385e8285c03d8b148f42f46f98c5f4becd5, < d99df02ff427f461102230f9c5b90a6c64ee8e23	Fixed in d99df02ff427f461102230f9c5b90a6c64ee8e23
LinuxLinux	Affected ≥ ff092385e8285c03d8b148f42f46f98c5f4becd5, < c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28	Fixed in c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28
LinuxLinux	Affected ≥ ff092385e8285c03d8b148f42f46f98c5f4becd5, < 643125b66ffc1147c66616b749475ba9efb15971	Fixed in 643125b66ffc1147c66616b749475ba9efb15971
LinuxLinux	Affected ≥ ff092385e8285c03d8b148f42f46f98c5f4becd5, < 491139c17f8ad5773303068411f6ac5eed438b51	Fixed in 491139c17f8ad5773303068411f6ac5eed438b51

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=0. [sean: tag for stable@]

References

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