Vendor advisories

Security advisories from the vendors you use.

Search new and updated bulletins from Microsoft, Citrix, Cisco, Palo Alto Networks, Fortinet, Ivanti, Delinea, Ubuntu, and AWS. We keep each vendor's advisory ID, affected products, CVEs, severity, dates, and available fix guidance together.

11Vendor sources
16,922Advisories collected
6,354Published or updated in 30 days
7,004Marked critical or high
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The original vendor bulletin remains the authority. SecurityAlert gives you one place to find it and compare the details vendors publish in different formats.

16,922 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.

RSS for these results
Microsoft Security Response CenterCVE-2026-66798
HighCVSS 4.3

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Edge for iOS, Microsoft Edge for MAC, Microsoft Edge for Linux, Microsoft Edge for Android
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-66324
HighCVSS 6.5

Microsoft Edge (Chromium-based) Spoofing Vulnerability

External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

Affected productsMicrosoft Edge for iOS, Microsoft Edge for MAC, Microsoft Edge for Android, Microsoft Edge for Linux
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-66323
HighCVSS 5.4

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Edge for Linux, Microsoft Edge for Android, Microsoft Edge for iOS, Microsoft Edge for MAC
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-65813
HighCVSS 6.5

Microsoft Exchange Server Elevation of Privilege Vulnerability

Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Affected productsMicrosoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14
Fixed versions15.02.2562.046, 15.01.2507.072, 15.02.1748.049, 15.02.1544.044
Vendor guidance

Install KB5121573. Install KB5121576. Install KB5121574. Install KB5121575.

Microsoft Security Response CenterCVE-2026-62904
MediumCVSS 5.4

Microsoft Edge (Chromium-based) Information Disclosure Vulnerability

Incorrect authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Edge for Android, Microsoft Edge for MAC, Microsoft Edge for Linux, Microsoft Edge for iOS
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Microsoft Security Response CenterCVE-2026-58616
MediumCVSS 4.4

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

Affected productsMicrosoft Edge for Android, Microsoft Edge for MAC, Microsoft Edge for iOS, Microsoft Edge for Linux
Fixed versions152.0.4191.52, 152.0.4191.53
Vendor guidance

Release Notes

Ubuntu Security NoticesUSN-8666-3
Severity not listed

USN-8666-3: Linux kernel (GCP FIPS) vulnerabilities

Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this issue to inject p...

Vendor guidance

This update corrects flaws in the following subsystems: - x86 architecture; - Cryptographic API; - InfiniBand drivers; - Media drivers; - NVIDIA Tegra memory controller driver; - Network drivers; - NVME drivers; - Fil...

Ubuntu Security NoticesUSN-8644-3
Severity not listed

USN-8644-3: Linux kernel (Azure) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - SCTP proto...

Vendor guidance

This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N.

Ubuntu Security NoticesUSN-8661-3
Severity not listed

USN-8661-3: Linux kernel vulnerabilities

Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this issue to inject p...

Vendor guidance

This update corrects flaws in the following subsystems: - x86 architecture; - InfiniBand drivers; - Network drivers; - NVME drivers; - Ext4 file system; - SMB network file system; - IPv4 networking; - Network traffic ...

Ubuntu Security NoticesUSN-8658-4
Severity not listed

USN-8658-4: Linux kernel (Azure CVM) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Open vSwitch; - SCTP protocol; (CVE-2026-53224, CVE-2026-53246, CVE-2026-64531)

Vendor guidance

This update corrects flaws in the following subsystems: - Open vSwitch; - SCTP protocol; (CVE-2026-53224, CVE-2026-53246, CVE-2026-64531)

Ubuntu Security NoticesUSN-8643-5
Severity not listed

USN-8643-5: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Network drivers; - Open vSwitch; - SCTP protocol; (CVE-2026-53224, CVE-2026-53246, CVE-2026-532...

Vendor guidance

This update corrects flaws in the following subsystems: - Network drivers; - Open vSwitch; - SCTP protocol; (CVE-2026-53224, CVE-2026-53246, CVE-2026-53247, CVE-2026-64531)

Ubuntu Security NoticesUSN-8688-1
Severity not listed

USN-8688-1: PAM vulnerability

Juthawong Naisanguansee discovered that PAM incorrectly cleared failed login attempt records when certain services invoked the account phase without first performing authentication. An attacker could possibly use this issue to reset failed login counters, resulting in authenti...

Ubuntu Security NoticesUSN-8685-1
Severity not listed

USN-8685-1: bzip2 vulnerability

It was discovered that bzip2 did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause a crash, resulting in a denial of service.

Ubuntu Security NoticesUSN-8684-1
Severity not listed

USN-8684-1: Perl vulnerabilities

It was discovered that Perl incorrectly handled certain arguments to Socket and pack/unpack functions. An attacker could possibly use this issue to read sensitive information from memory. (CVE-2026-12087, CVE-2026-57432) It was discovered that Perl incorrectly handled regular ...

Ubuntu Security Notices
Severity not listed

LSN-0121-1: Kernel Live Patch Security Notice

In the Linux kernel, the following vulnerability has been resolved: ksmbd: ipc: fix use-after-free in ipc_msg_send_request ipc_msg_send_request() waits for a generic netlink reply using an ipc_msg_table_entry on the stack. In the Linux kernel, the following vulnerability has b...

Vendor guidance

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer (rp_ibuf.

Microsoft Security Response CenterCVE-2026-42993
HighCVSS 7.5

Remote Desktop Client Remote Code Execution Vulnerability

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417, 10.0.26100.32995
Vendor guidance

Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051.

Microsoft Security Response CenterCVE-2026-50435
HighCVSS 7.8

Windows Overlay Filter Elevation of Privilege Vulnerability

Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance

Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099444.

Before you act

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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