Microsoft · net/iucv: fix the recvmsg window update
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in fe7393a627db2d093e8c0cae69d619b30fefae5f : update Microsoft when convenient.
Data as of 29 Oct 2026, 11:49 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in fe7393a627db2d093e8c0cae69d619b30fefae5f, fa5acd038ea657ad5033713d6916214cbd349151, 8f2efa742f4cfe7dd756154f8bc07350dbe3ec92
Exploitation evidence
Disclosed: evidence found.
CVE published 28 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 Linux to fe7393a627db2d093e8c0cae69d619b30fefae5f, fa5acd038ea657ad5033713d6916214cbd349151 or 8f2efa742f4cfe7dd756154f8bc07350dbe3ec92.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
Description
CVE-2026-99133 is a vulnerability related to the net/iucv component involving a fix to the recvmsg window update. The provided information is minimal and does not describe the nature of the flaw, its impact, or exploitation details. The affected version is exactly 3.0.