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Vendor advisories

Microsoft Security Response Center

Browse 15,972 advisories from this official source. Search by product, CVE, severity, or advisory ID.

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15,972 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-2026-32288
MediumCVSS 6.5

Unbounded allocation for old GNU sparse in archive/tar

Mariner

Affected productsazl3 containerized-data-importer 1.62.0-3 on Azure Linux 3.0, azl3 gh 2.62.0-15 on Azure Linux 3.0, azl3 moby-engine 25.0.3-17 on Azure Linux 3.0, azl3 skopeo 1.14.4-10 on Azure Linux 3.0
Fixed versions1.62.0-3, 2.62.0-15, 25.0.3-17, 1.14.4-10
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2026-32288
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-31577
MediumCVSS 5.5

nilfs2: fix NULL i_assoc_inode dereference in nilfs_mdt_save_to_shadow_map

Mariner

Affected productscbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0, azl3 kernel 6.6.134.1-2 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0, azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
Fixed versions6.6.137.1-1
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2026-31577
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-37801
MediumCVSS 7.8

spi: spi-imx: Add check for spi_imx_setupxfer()

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.92.2-1 on Azure Linux 3.0, azl3 kernel 6.6.85.1-4 on Azure Linux 3.0, cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Fixed versions6.6.92.2-1
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-37801
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-37800
MediumCVSS 7.1

driver core: fix potential NULL pointer dereference in dev_uevent()

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.92.2-1 on Azure Linux 3.0, azl3 kernel 6.6.85.1-4 on Azure Linux 3.0, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
Fixed versions6.6.92.2-1
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-37800
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-37856
MediumCVSS 5.5

btrfs: harden block_group::bg_list against list_del() races

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.112.1-2 on Azure Linux 3.0, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, azl3 kernel 6.6.117.1-1 on Azure Linux 3.0, azl3 kernel 6.6.119.3-1 on Azure Linux 3.0
Vendor guidance

Release Notes

CVE-2025-37856
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-4948
MediumCVSS 5.5

Firewalld: firewalld: local unprivileged user can modify firewall state due to d-bus setter mis-authorization

Mariner

Affected productscbl2 firewalld 1.0.3-2 on CBL Mariner 2.0, azl3 firewalld 2.0.2-3 on Azure Linux 3.0, cbl2 firewalld 1.0.3-2, cbl2 firewalld 1.0.3-2 on CBL-Mariner 2.0
Fixed versions2.0.2-4
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2026-4948
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-6357
Medium

pip self-update functionality can import newly installed modules after wheel installation

Mariner

Affected productsazl3 python-pip 24.2-8 on Azure Linux 3.0, azl3 python-pip 24.2-6 on Azure Linux 3.0, azl3 python-virtualenv 20.36.1-2 on Azure Linux 3.0, cbl2 python-virtualenv 20.26.6-3 on CBL Mariner 2.0
Fixed versions24.2-8, 20.36.1-4
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2026-6357
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-22109
MediumCVSS 5.5

ax25: Remove broken autobind

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.96.2-1 on Azure Linux 3.0, azl3 kernel 6.6.96.2-2 on Azure Linux 3.0, azl3 kernel 6.6.112.1-2 on Azure Linux 3.0, azl3 kernel 6.6.117.1-1 on Azure Linux 3.0
Vendor guidance

Release Notes

CVE-2025-22109
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-4802
HighCVSS 8.4

Untrusted LD_LIBRARY_PATH environment variable vulnerability in the GNU C Library version 2.27 to 2.38 allows attacker controlled loading of dynamically shared library in statically compiled setuid binaries that call dlopen (including internal dlopen calls after setlocale or calls to NSS functions such as getaddrinfo).

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productscbl2 glibc 2.35-7 on CBL Mariner 2.0, azl3 glibc 2.38-11 on Azure Linux 3.0, azl3 glibc 2.38-12 on Azure Linux 3.0, cbl2 glibc 2.35-9 on CBL Mariner 2.0
Fixed versions2.35-8, 2.38-12
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-4802
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-40356
MediumCVSS 5.9

In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.

Mariner

Affected productsazl3 krb5 1.21.3-3 on Azure Linux 3.0, cbl2 krb5 1.19.4-5 on CBL Mariner 2.0, azl3 krb5 1.21.3-4 on Azure Linux 3.0, cbl2 krb5 1.19.4-5 on CBL-Mariner 2.0
Fixed versions1.21.3-4
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2026-40356
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-32241
HighCVSS 7.5

Flannel vulnerable to cross-node remote code execution via extension backend BackendData injection

Mariner

Affected productsazl3 flannel 0.24.2-26 on Azure Linux 3.0, cbl2 flannel 0.14.0-30 on CBL-Mariner 2.0, azl3 flannel 0.24.2-24 on Azure Linux 3.0, cbl2 flannel 0.14.0-30 on CBL Mariner 2.0
Fixed versions0.24.2-25, 0.14.0-31
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2026-32241
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-46327
LowCVSS 3.3

Go Snowflake Driver has race condition when checking access to Easy Logging configuration file

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productscbl2 telegraf 1.29.4-16 on CBL Mariner 2.0, azl3 telegraf 1.31.0-10 on Azure Linux 3.0, cbl2 telegraf 1.29.4-17 on CBL Mariner 2.0, azl3 telegraf 1.31.0-11 on Azure Linux 3.0
Fixed versions1.31.0-24, 1.31.0-27
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-46327
Read the vendor advisory Watch this product
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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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