Microsoft · s390/vfio-ap: fix KVM GISC and page leak when queue removed from host config
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in da69d3ac53490724eba0ade9deb4e539a6ae9034 : update Microsoft when convenient.
Data as of 29 Oct 2026, 10:37 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in da69d3ac53490724eba0ade9deb4e539a6ae9034, cf441a0db681dfad5e89b015d6be11365159d7a9, 65e05ec252a9b79e75930d3c4dd42d8877db04c5 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 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 29 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
Description
This vulnerability, identified as CVE-2026-98473, relates to the s390/vfio-ap component and involves fixing KVM GISC and a page leak when a queue is removed from the host configuration. It affects Microsoft products with versions 3.0 and 4.0. The published information does not include a CVSS score or detailed impact analysis.