Microsoft · io_uring: defer eventfd signaling when queued from a wakeup handler
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in e22f4494cc9487d326e5e3067f33dea7c1e442b2 : update Microsoft when convenient.
Data as of 7 Nov 2026, 12:19 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- Patch
- Available – fixed in e22f4494cc9487d326e5e3067f33dea7c1e442b2, d0c240f25e654442a72af5ca021a02165ccce638, cd305ee3633a45fcf5f3a5d83f99f3cb77d87b6e +3
Exploitation evidence
Disclosed: evidence found.
CVE published 9 Sep 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 7 Nov 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
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
Description
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle