Skip to main content
CVE-2026-89539VulnerabilityPublished Updated

Microsoft · SUNRPC: reject duplicate CREDS_VALUE options

Affects MicrosoftSource GCVE Database

0
Compare
Authoritative record:CVE-2026-89539· Medium

Not known to be exploited · fixed in f615b884310bf82d0014e3b5a92eb9aa88146685 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:19 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f615b884310bf82d0014e3b5a92eb9aa88146685, 6207d7df96b3a7f507f0bfc8842b3760ee2fb1f8, 4904d61eb2e2bd484000725fd302b8f37b4fcf3a +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 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
  • ≥ 1d658336b05f8697d6445834f8867f8ad5e4f735, < f615b884310bf82d0014e3b5a92eb9aa88146685
Fixed in
  • f615b884310bf82d0014e3b5a92eb9aa88146685
LinuxLinuxAffected
  • ≥ 1d658336b05f8697d6445834f8867f8ad5e4f735, < 6207d7df96b3a7f507f0bfc8842b3760ee2fb1f8
Fixed in
  • 6207d7df96b3a7f507f0bfc8842b3760ee2fb1f8
LinuxLinuxAffected
  • ≥ 1d658336b05f8697d6445834f8867f8ad5e4f735, < 4904d61eb2e2bd484000725fd302b8f37b4fcf3a
Fixed in
  • 4904d61eb2e2bd484000725fd302b8f37b4fcf3a
LinuxLinuxAffected
  • ≥ 1d658336b05f8697d6445834f8867f8ad5e4f735, < 64b9ef369a6f723294613cb129e5f62c35429df5
Fixed in
  • 64b9ef369a6f723294613cb129e5f62c35429df5
LinuxLinuxAffected
  • ≥ 1d658336b05f8697d6445834f8867f8ad5e4f735, < 9d94f046b23de0f77849ea69133063c949297e30
Fixed in
  • 9d94f046b23de0f77849ea69133063c949297e30
LinuxLinuxAffected
  • ≥ 1d658336b05f8697d6445834f8867f8ad5e4f735, < 7a1d0501cbb962beba23377035d667bf3c1726ee
Fixed in
  • 7a1d0501cbb962beba23377035d667bf3c1726ee

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

Community reviews

Loading reviews…