Microsoft · cxl/port: Fix use after free of parent_port in cxl_detach_ep()
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in f7dc6f381a1e5f068333f1faa9265d6af1df4235 : patch Microsoft soon.
Data as of 27 Oct 2026, 00:11 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- Patch
- Available – fixed in f7dc6f381a1e5f068333f1faa9265d6af1df4235, d216a4bd138eb57cc4ae7c43b2f709e3482af7e2, b1f62588ab1be6c9535d74348003c86b47ec4abd +2
Exploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
Description
CVE-2026-31530 is a vulnerability in Microsoft software involving a use-after-free flaw in the cxl/port component, specifically in the cxl_detach_ep() function related to the parent_port object. This flaw could lead to memory corruption or instability if exploited. The vulnerability affects version 3.0 of the product. No CVSS score or detailed impact information is provided, and there is no indication of known exploitation in the wild.