RDMA/efa: Fix use of completion ctx after free
CVE-2026-31493 is a vulnerability in Microsoft software related to RDMA/efa where a completion context is used after it has been freed. This use-after-free flaw can lead to undefined behavior or potential security issues. The affected versions explicitly include 2.0 and 3.0. No CVSS score or detailed impact information is provided. There is no indication of known exploits in the wild or available patches at this time.
AI Analysis
Technical Summary
This vulnerability involves the improper use of a completion context after it has been freed in the RDMA/efa component of Microsoft software. The flaw could potentially cause memory corruption or other unintended behavior due to use-after-free. The affected versions are 2.0 and 3.0. No further technical details or exploitation methods are described in the provided data.
Potential Impact
The impact is not explicitly detailed in the available information. Use-after-free vulnerabilities can lead to application crashes, memory corruption, or potentially arbitrary code execution depending on context, but no specific impact or exploitation details are provided here.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or patch links are provided in the current data.
RDMA/efa: Fix use of completion ctx after free
Description
CVE-2026-31493 is a vulnerability in Microsoft software related to RDMA/efa where a completion context is used after it has been freed. This use-after-free flaw can lead to undefined behavior or potential security issues. The affected versions explicitly include 2.0 and 3.0. No CVSS score or detailed impact information is provided. There is no indication of known exploits in the wild or available patches at this time.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves the improper use of a completion context after it has been freed in the RDMA/efa component of Microsoft software. The flaw could potentially cause memory corruption or other unintended behavior due to use-after-free. The affected versions are 2.0 and 3.0. No further technical details or exploitation methods are described in the provided data.
Potential Impact
The impact is not explicitly detailed in the available information. Use-after-free vulnerabilities can lead to application crashes, memory corruption, or potentially arbitrary code execution depending on context, but no specific impact or exploitation details are provided here.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or patch links are provided in the current data.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-31493
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a42ed8c27e9c79719960b7f
Added to database: 06/29/2026, 22:11:24 UTC
Last enriched: 06/29/2026, 22:52:30 UTC
Last updated: 07/31/2026, 19:24:47 UTC
Views: 22
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