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CVE-2026-72073VulnerabilityPublished Updated

Microsoft · mmc: vub300: fix use-after-free on probe failure

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-72073· Medium

Not known to be exploited · fixed in face65f80c6946c631ca3490b4ebd2c016a4fd2c : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:32 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in face65f80c6946c631ca3490b4ebd2c016a4fd2c, a3b5f242997a3be7404112fd48784881560aea57, 618cf6b139503ec18ef93ffd663396aaf99b763a +10

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Aug 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
  • >=4.9.337 <4.10
  • >=4.14.303 <4.15
  • >=4.19.270 <4.20
  • >=5.4.229 <5.5
  • >=5.10.163 <5.11
  • >=5.15.86 <5.16
  • >=6.0.16 <6.1
  • >=6.1.2 <6.2
Fixed in
  • face65f80c6946c631ca3490b4ebd2c016a4fd2c
  • a3b5f242997a3be7404112fd48784881560aea57
  • 618cf6b139503ec18ef93ffd663396aaf99b763a
  • 6c66653dac9b25272d5fd4ed42a34aa5249e16df
  • 6.2
  • 6.1
  • 5b82af744e06cd741938c3da54fdbe564a7e52d9
  • 5.16
  • 5.11
  • 5.5
  • 4.20
  • 4.15
  • 4.10
LinuxLinuxAffected
  • =6.2
Fixed in–

Description

A use-after-free vulnerability was identified in the Microsoft component 'mmc: vub300' during probe failure. This flaw could potentially lead to memory corruption issues. The vulnerability is tracked as CVE-2026-72073 and affects version 3.0 of the product. No CVSS score or detailed impact information is provided. No known exploits are reported in the wild.

References

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