Vendor advisories
Microsoft Security Response Center
Browse 17,903 advisories from this official source. Search by product, CVE, severity, or advisory ID.
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17,903 advisories Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.
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Microsoft Security Response Center CVE-2026-23313
Updated May 1, 2026
High CVSS 7.1
Mariner
Affected products azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, azl3 kernel 6.6.130.1-3 on Azure Linux 3.0, azl3 kernel 6.6.134.1-2 on Azure Linux 3.0
Fixed versions 6.6.137.1-1
Microsoft Security Response Center CVE-2026-23255
Updated May 1, 2026
Medium CVSS 4.7
Mariner
Affected products azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, azl3 kernel 6.6.130.1-3 on Azure Linux 3.0, azl3 kernel 6.6.134.1-2 on Azure Linux 3.0
Fixed versions 6.6.137.1-1
Microsoft Security Response Center CVE-2026-31580
Updated Apr 30, 2026
Medium CVSS 5.5
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-33825
Updated Apr 30, 2026
High CVSS 7.8
Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.
Affected products Microsoft Defender Antimalware Platform
Fixed versions 4.18.26030.3011
Microsoft Security Response Center CVE-2026-24051
Updated Apr 30, 2026
Medium CVSS 7.0
Mariner
Affected products azl3 ignition-flatcar 2.22.0-1 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-31420
Updated Apr 30, 2026
Medium CVSS 5.5
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-31584
Updated Apr 30, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-31476
Updated Apr 30, 2026
Medium CVSS 6.5
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Fixed versions 6.6.134.1-2
Microsoft Security Response Center CVE-2026-31686
Updated Apr 30, 2026
High CVSS 7.1
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-31581
Updated Apr 30, 2026
High CVSS 7.0
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-34978
Updated Apr 30, 2026
Medium CVSS 6.5
Mariner
Affected products azl3 cups 2.4.16-1 on Azure Linux 3.0
Fixed versions 2.4.17-1
Microsoft Security Response Center CVE-2026-31410
Updated Apr 30, 2026
Medium CVSS 6.5
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-2100
Updated Apr 30, 2026
Medium CVSS 5.3
Mariner
Affected products cbl2 p11-kit 0.24.1-1 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-31530
Updated Apr 30, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-31477
Updated Apr 30, 2026
High CVSS 7.5
Mariner
Affected products cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-31478
Updated Apr 30, 2026
Critical CVSS 9.8
Mariner
Affected products cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-33916
Updated Apr 30, 2026
Medium CVSS 4.7
Mariner
Affected products cbl2 reaper 3.1.1-22 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-33542
Updated Apr 30, 2026
Medium
Mariner
Affected products azl3 telegraf 1.31.0-15 on Azure Linux 3.0, cbl2 telegraf 1.29.4-21 on CBL Mariner 2.0, azl3 telegraf 1.31.0-17 on Azure Linux 3.0
Fixed versions 1.31.0-17, 1.29.4-22
Microsoft Security Response Center CVE-2026-23393
Updated Apr 30, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-31432
Updated Apr 30, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-23378
Updated Apr 30, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-31502
Updated Apr 30, 2026
High CVSS 7.0
Mariner
Affected products azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-23372
Updated Apr 30, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Microsoft Security Response Center CVE-2026-23364
Updated Apr 30, 2026
High CVSS 7.4
Mariner
Affected products azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Fixed versions 6.6.130.1-1
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Confirm the installed product and version, read the linked vendor guidance, and test the recommended update or mitigation through your normal change process.
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