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CVE-2026-93104VulnerabilityPublished Updated

Microsoft · RDMA/rvt: Return NULL after port allocation failure

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-93104· High

Not known to be exploited · fixed in b7129930d1ec46c03a0de07fdce6c29f75795006 : patch Microsoft soon.

Data as of 7 Nov 2026, 13:47 UTC

Severity
High

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

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ ff6acd69518e0a84bd9c9b7f1bd4313f7076db97, < b7129930d1ec46c03a0de07fdce6c29f75795006
Fixed in
  • b7129930d1ec46c03a0de07fdce6c29f75795006
LinuxLinuxAffected
  • ≥ ff6acd69518e0a84bd9c9b7f1bd4313f7076db97, < b1e1b25723af44328524c7b54433e4bf0ab9930c
Fixed in
  • b1e1b25723af44328524c7b54433e4bf0ab9930c
LinuxLinuxAffected
  • ≥ ff6acd69518e0a84bd9c9b7f1bd4313f7076db97, < 80968b42d13080bf7bc1f3ee17fef126ce2ad98f
Fixed in
  • 80968b42d13080bf7bc1f3ee17fef126ce2ad98f
LinuxLinuxAffected
  • ≥ ff6acd69518e0a84bd9c9b7f1bd4313f7076db97, < 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
Fixed in
  • 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
LinuxLinuxAffected
  • ≥ ff6acd69518e0a84bd9c9b7f1bd4313f7076db97, < 32d2cdb0f3cac430b04124c3b7248851fe2037f8
Fixed in
  • 32d2cdb0f3cac430b04124c3b7248851fe2037f8
LinuxLinuxAffected
  • ≥ ff6acd69518e0a84bd9c9b7f1bd4313f7076db97, < 5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1
Fixed in
  • 5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1

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.

References

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