Microsoft · RDMA/rvt: Return NULL after port allocation failure
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in b7129930d1ec46c03a0de07fdce6c29f75795006 : patch Microsoft soon.
Data as of 7 Nov 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in b7129930d1ec46c03a0de07fdce6c29f75795006, b1e1b25723af44328524c7b54433e4bf0ab9930c, 80968b42d13080bf7bc1f3ee17fef126ce2ad98f +3
Exploitation evidence
Disclosed: evidence found.
CVE published 17 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
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Description
This vulnerability involves the RDMA/rvt component where a NULL return occurs after a port allocation failure. The description is minimal and does not provide specific technical details or impact scenarios. The affected versions are Microsoft product versions 3.0 and 4.0. No CVSS score or detailed impact information is provided.