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CVE-2026-98430VulnerabilityPublished Updated

Microsoft · RDMA/efa: Keep admin queues alive while IRQ is registered

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98430· Medium

Not known to be exploited · fixed in e08aca85c02ff290f785f07acae758f0daf5f49e : update Microsoft when convenient.

Data as of 2 Nov 2026, 10:58 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e08aca85c02ff290f785f07acae758f0daf5f49e, d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0, cf5520d1c931a70ccce0a1a247113bcec47a42be +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Oct 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 2 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ b7f5e880f3774ff1934ce272e1c3b673a3a9c414, < e08aca85c02ff290f785f07acae758f0daf5f49e
Fixed in
  • e08aca85c02ff290f785f07acae758f0daf5f49e
LinuxLinuxAffected
  • ≥ b7f5e880f3774ff1934ce272e1c3b673a3a9c414, < d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0
Fixed in
  • d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0
LinuxLinuxAffected
  • ≥ b7f5e880f3774ff1934ce272e1c3b673a3a9c414, < cf5520d1c931a70ccce0a1a247113bcec47a42be
Fixed in
  • cf5520d1c931a70ccce0a1a247113bcec47a42be
LinuxLinuxAffected
  • ≥ b7f5e880f3774ff1934ce272e1c3b673a3a9c414, < bc7e64bad96c23fb343f47689670d0037f1a65e7
Fixed in
  • bc7e64bad96c23fb343f47689670d0037f1a65e7
LinuxLinuxAffected
  • ≥ b7f5e880f3774ff1934ce272e1c3b673a3a9c414, < 00f7df59543cce445cfd2f109ace88c17d8aef4d
Fixed in
  • 00f7df59543cce445cfd2f109ace88c17d8aef4d
LinuxLinuxAffected
  • ≥ b7f5e880f3774ff1934ce272e1c3b673a3a9c414, < 0a8a105978e5ace0d885964317c5aed8ab4c0a0c
Fixed in
  • 0a8a105978e5ace0d885964317c5aed8ab4c0a0c

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

CVE-2026-98430 is a vulnerability related to RDMA/efa functionality in Microsoft products, specifically affecting versions 3.0 and 4.0. The issue involves keeping admin queues alive while an IRQ is registered. No detailed impact or exploitation information is provided.

References

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