Skip to main content
CVE-2026-98884VulnerabilityPublished Updated

Microsoft · mmc: core: Add validation for host-provided max_segs

Affects MicrosoftSource GCVE Database

0
Compare
Authoritative record:CVE-2026-98884· High

Not known to be exploited · fixed in c465608bd25d7f8565be7817a6a36a5d69f8aa14 : patch Microsoft soon.

Data as of 2 Nov 2026, 10:58 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in c465608bd25d7f8565be7817a6a36a5d69f8aa14, b037c2f7794aa01ee2a00e43c29645fd2dd2dfb9, a8283f7d93f0d9336b15618b9665279ff6944319 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 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
  • ≥ 05e5b136459b11cd9559370d5756719e08074fe0, < c465608bd25d7f8565be7817a6a36a5d69f8aa14
Fixed in
  • c465608bd25d7f8565be7817a6a36a5d69f8aa14
LinuxLinuxAffected
  • ≥ 05e5b136459b11cd9559370d5756719e08074fe0, < b037c2f7794aa01ee2a00e43c29645fd2dd2dfb9
Fixed in
  • b037c2f7794aa01ee2a00e43c29645fd2dd2dfb9
LinuxLinuxAffected
  • ≥ 05e5b136459b11cd9559370d5756719e08074fe0, < a8283f7d93f0d9336b15618b9665279ff6944319
Fixed in
  • a8283f7d93f0d9336b15618b9665279ff6944319
LinuxLinuxAffected
  • ≥ 05e5b136459b11cd9559370d5756719e08074fe0, < 9cca3c0c1472d6204ef8a78a6e7b3afe9610b22e
Fixed in
  • 9cca3c0c1472d6204ef8a78a6e7b3afe9610b22e
LinuxLinuxAffected
  • ≥ 05e5b136459b11cd9559370d5756719e08074fe0, < 03f5a16ec85beebabd5ab5e67ac1527f87908ded
Fixed in
  • 03f5a16ec85beebabd5ab5e67ac1527f87908ded
LinuxLinuxAffected
  • ≥ 05e5b136459b11cd9559370d5756719e08074fe0, < 3e0483e93a8be320f70a1ff68d835f7f015af311
Fixed in
  • 3e0483e93a8be320f70a1ff68d835f7f015af311

Description

CVE-2026-98884 is a vulnerability in Microsoft software related to the 'mmc: core' component, specifically involving the addition of validation for host-provided max_segs. The advisory references the Microsoft Support Lifecycle for determining software support status. No detailed technical or impact information is provided.

References

Community reviews

Loading reviews…