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-2026-31724
Updated May 19, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.134.1-2 on Azure Linux 3.0, azl3 kernel 6.6.138.1-1 on Azure Linux 3.0, azl3 kernel 6.6.137.1-2 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-31723
Updated May 19, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.134.1-2 on Azure Linux 3.0, azl3 kernel 6.6.137.1-2 on Azure Linux 3.0, azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-42246
Updated May 19, 2026
High
Mariner
Affected products azl3 ruby 3.3.5-8 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-42256
Updated May 19, 2026
Medium
Mariner
Affected products azl3 ruby 3.3.5-8 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-42258
Updated May 19, 2026
Medium
Mariner
Affected products azl3 ruby 3.3.5-8 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-42257
Updated May 19, 2026
Medium
Mariner
Affected products azl3 ruby 3.3.5-8 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-37459
Updated May 19, 2026
Medium CVSS 7.5
Mariner
Affected products azl3 frr 10.5.0-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-37458
Updated May 19, 2026
Medium CVSS 6.5
Mariner
Affected products azl3 frr 10.5.0-3 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-43421
Updated May 19, 2026
Severity not listed
Mariner
Affected products azl3 kernel 6.6.137.1-2 on Azure Linux 3.0, azl3 kernel 6.6.138.1-1 on Azure Linux 3.0, azl3 kernel 6.6.139.1-1 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-43353
Updated May 19, 2026
High CVSS 7.8
Mariner
Affected products azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-43310
Updated May 19, 2026
Medium CVSS 5.5
Mariner
Affected products azl3 kernel 6.6.137.1-2 on Azure Linux 3.0, azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-43317
Updated May 19, 2026
Severity not listed
Mariner
Affected products azl3 kernel 6.6.138.1-1 on Azure Linux 3.0, azl3 kernel 6.6.137.1-2 on Azure Linux 3.0, azl3 kernel 6.6.139.1-1 on Azure Linux 3.0
Microsoft Security Response Center CVE-2026-6473
Updated May 19, 2026
High CVSS 8.8
Mariner
Affected products azl3 postgresql 16.12-1 on Azure Linux 3.0
Fixed versions 16.14-1
Microsoft Security Response Center CVE-2026-6477
Updated May 19, 2026
High CVSS 8.8
Mariner
Affected products azl3 postgresql 16.12-1 on Azure Linux 3.0
Fixed versions 16.14-1
Microsoft Security Response Center CVE-2026-42822
Published May 18, 2026
Critical CVSS 10.0
Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges over a network.
Affected products Azure Local
Fixed versions 2604.2.25645
Microsoft Security Response Center CVE-2026-42946
Updated May 17, 2026
High CVSS 6.5
Mariner
Affected products azl3 nginx 1.28.3-1 on Azure Linux 3.0
Fixed versions 1.28.3-2
Microsoft Security Response Center CVE-2026-42945
Updated May 17, 2026
Critical CVSS 8.1
Mariner
Affected products azl3 nginx 1.28.3-1 on Azure Linux 3.0
Fixed versions 1.28.3-2
Microsoft Security Response Center CVE-2026-42934
Updated May 17, 2026
Medium CVSS 4.8
Mariner
Affected products azl3 nginx 1.28.3-1 on Azure Linux 3.0
Fixed versions 1.28.3-2
Microsoft Security Response Center CVE-2026-40701
Updated May 17, 2026
Medium CVSS 4.8
Mariner
Affected products azl3 nginx 1.28.3-1 on Azure Linux 3.0
Fixed versions 1.28.3-2
Microsoft Security Response Center CVE-2026-40460
Updated May 17, 2026
Medium CVSS 6.5
Mariner
Affected products azl3 nginx 1.28.3-1 on Azure Linux 3.0
Fixed versions 1.28.3-2
Microsoft Security Response Center CVE-2026-6479
Updated May 17, 2026
High CVSS 7.5
Mariner
Affected products azl3 postgresql 16.12-1 on Azure Linux 3.0
Fixed versions 16.14-1
Microsoft Security Response Center CVE-2026-6637
Updated May 17, 2026
High CVSS 8.8
Mariner
Affected products azl3 postgresql 16.12-1 on Azure Linux 3.0
Fixed versions 16.14-1
Microsoft Security Response Center CVE-2026-6472
Updated May 17, 2026
Medium CVSS 5.4
Mariner
Affected products azl3 postgresql 16.12-1 on Azure Linux 3.0
Fixed versions 16.14-1
Microsoft Security Response Center CVE-2026-6474
Updated May 17, 2026
Medium CVSS 4.3
Mariner
Affected products azl3 postgresql 16.12-1 on Azure Linux 3.0
Fixed versions 16.14-1
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Start with the vendor's bulletin.
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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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