Possible NULL Dereference When Processing CMS KeyAgreeRecipientInfo
CVE-2026-28389 is a vulnerability involving a possible NULL pointer dereference when processing CMS KeyAgreeRecipientInfo in Microsoft products, including Azure Linux versions 2. 0 and 3. 0. This type of flaw (CWE-476) can cause application crashes or denial of service if triggered. There is no CVSS score or detailed vendor advisory available to confirm exploitation or patch status. No known exploits are reported in the wild. The vulnerability affects Microsoft software but no specific geographic targeting is indicated.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-28389) relates to a potential NULL pointer dereference in the handling of CMS KeyAgreeRecipientInfo structures within Microsoft products, including Azure Linux 2.0 and 3.0. A NULL dereference (CWE-476) can lead to application instability or crashes when processing malformed or unexpected input. The available data does not include a CVSS score, detailed impact analysis, or patch information from Microsoft Security Response Center. No known active exploitation has been reported.
Potential Impact
The impact of this vulnerability is primarily a potential denial of service through application or service crashes due to NULL pointer dereference. There is no information indicating privilege escalation, data disclosure, or remote code execution. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. Since no official fix or workaround information is provided, users should monitor vendor communications for updates. No specific mitigation steps are currently documented.
Possible NULL Dereference When Processing CMS KeyAgreeRecipientInfo
Description
CVE-2026-28389 is a vulnerability involving a possible NULL pointer dereference when processing CMS KeyAgreeRecipientInfo in Microsoft products, including Azure Linux versions 2. 0 and 3. 0. This type of flaw (CWE-476) can cause application crashes or denial of service if triggered. There is no CVSS score or detailed vendor advisory available to confirm exploitation or patch status. No known exploits are reported in the wild. The vulnerability affects Microsoft software but no specific geographic targeting is indicated.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-28389) relates to a potential NULL pointer dereference in the handling of CMS KeyAgreeRecipientInfo structures within Microsoft products, including Azure Linux 2.0 and 3.0. A NULL dereference (CWE-476) can lead to application instability or crashes when processing malformed or unexpected input. The available data does not include a CVSS score, detailed impact analysis, or patch information from Microsoft Security Response Center. No known active exploitation has been reported.
Potential Impact
The impact of this vulnerability is primarily a potential denial of service through application or service crashes due to NULL pointer dereference. There is no information indicating privilege escalation, data disclosure, or remote code execution. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. Since no official fix or workaround information is provided, users should monitor vendor communications for updates. No specific mitigation steps are currently documented.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-28389
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1ca158e29bf47b505e1e3b
Added to database: 5/31/2026, 9:00:08 PM
Last enriched: 5/31/2026, 9:04:08 PM
Last updated: 6/2/2026, 7:31:35 AM
Views: 10
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