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Vendor advisories

Microsoft Security Response Center

Browse 17,705 advisories from this official source. Search by product, CVE, severity, or advisory ID.

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17,705 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 CenterCVE-2026-56132
MediumCVSS 6.9

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.

Mariner

Affected productsazl3 cmake 3.30.3-13 on Azure Linux 3.0, azl3 expat 2.6.4-6 on Azure Linux 3.0, azl3 python3 3.12.9-11 on Azure Linux 3.0
Fixed versions2.8.2-1
Vendor guidance

CBL-Mariner Releases

CVE-2026-56132
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-56131
MediumCVSS 4.9

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).

Mariner

Affected productsazl3 cmake 3.30.3-13 on Azure Linux 3.0, azl3 expat 2.6.4-6 on Azure Linux 3.0, azl3 python3 3.12.9-11 on Azure Linux 3.0
Fixed versions2.8.2-1
Vendor guidance

CBL-Mariner Releases

CVE-2026-50219CVE-2026-56131
Read the vendor advisory Watch this product
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Start with the vendor's bulletin.

We normalize the fields that vendors publish so you can search and compare advisories in one place. We do not replace the original bulletin or turn a product-name match into proof that a system is vulnerable.

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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