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.
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16,884 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.
RabbitMQ: Federation and Shovel Gen-Servers Lack format_status Callback - Plaintext Credentials Exposed in Crash Dumps and sys:get_status
Mariner
Release Notes
USN-8872-1: libxmltok vulnerabilities
It was discovered that Expat, contained with the xmltok library did not correctly handle certain integer arithmetic. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly cause a denial of service. (CVE-2026-56404, CVE-202...
USN-8870-1: OpenStack Aodh and Watcher vulnerability
Chen YuXiang discovered that OpenStack Aodh did not correctly enforce project scoping in its alarm list API and that the OpenStack Watcher webhook trigger endpoint did not apply authorization. An attacker could possibly use this issue to access sensitive alarm metadata or trig...
USN-8871-1: Linux kernel (Raspberry Pi) vulnerabilities
It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to memory after permiss...
This update corrects flaws in the following subsystems: - ARM64 architecture; - InfiniBand drivers; - Network drivers; - TCM subsystem; - exFAT file system; - Network file system (NFS) client; - Network file system (N...
USN-8851-3: 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: - Network file system (NFS) server daemon; - IPv6 networking; - Netfilter; (CVE-2025-38724, CVE-2...
This update corrects flaws in the following subsystems: - Network file system (NFS) server daemon; - IPv6 networking; - Netfilter; (CVE-2025-38724, CVE-2026-53131, CVE-2026-53221)
USN-8868-1: LibreOffice vulnerabilities
It was discovered that LibreOffice incorrectly handled WMF image imports. An attacker could possibly use this issue to cause LibreOffice to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-63272) It was discovered that LibreOffice incorrectly handl...
(CVE-2026-63279) It was discovered that LibreOffice incorrectly mitigated out-of-bounds writes via Graphite font actions.
USN-8867-1: Ceph vulnerability
It was discovered that the Ceph Object Gateway (RGW) SigV4 handler did not reject requests carrying x-amz-* headers that were absent from the signed header set. An attacker holding a presigned URL could possibly use this issue to attach arbitrary unsigned x-amz-* headers that ...
USN-8865-1: EDK II vulnerabilities
It was discovered that EDK II incorrectly handled CMS key unwrapping in the embedded OpenSSL library. An attacker could possibly use this issue to cause a heap buffer overflow, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubunt...
Microsoft Excel Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Click to Run Release Notes Install KB5002884. Install KB5002903.
Windows Distributed File System (DFS) Remote Code Execution Vulnerability
Use after free in Windows Distributed File System (DFS) allows an authorized attacker to execute code over a network.
Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.
Windows SMB Client Remote Code Execution Vulnerability
Use after free in Windows SMB Client allows an unauthorized attacker to execute code over a network.
Install KB5122882. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012.
Windows Connected User Experiences and Telemetry Information Disclosure Vulnerability
Insufficient granularity of access control in Windows Connected User Experiences and Telemetry allows an authorized attacker to disclose information locally.
Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012.
usb: xhci: Fix isochronous Ring Underrun/Overrun event handling
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...
Release Notes
bpf: Fix kmemleak warning for percpu hashmap
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...
Release Notes
nvme-fabrics: use reserved tag for reg read/write command
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...
Release Notes
bpf: Defer work in bpf_timer_cancel_and_free
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...
Release Notes
ipv6: mcast: extend RCU protection in igmp6_send()
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...
CBL-Mariner Releases Release Notes
btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()
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...
Release Notes
btrfs: don't check PageError in __extent_writepage
Mariner
Release Notes
accel/habanalabs: postpone mem_mgr IDR destruction to hpriv_release()
Mariner
Release Notes
riscv: uprobes: Add missing fence.i after building the XOL buffer
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...
CBL-Mariner Releases Release Notes
efi: Don't map the entire mokvar table to determine its size
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...
Release Notes
GNU Binutils Linker elfcode.h elf_swap_shdr heap-based overflow
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...
CBL-Mariner Releases Release Notes
A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`. When this occurs, `dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`. * This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**
Mariner
CBL-Mariner Releases Release Notes
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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.