Vendor advisories

Ubuntu Security Notices

Browse 391 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 4 minutes ago Checked every 15 minutes

391 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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Ubuntu Security NoticesUSN-8782-1
Severity not listed

USN-8782-1: Rclone vulnerability

It was discovered that Rclone incorrectly handled unauthenticated requests to the remote control API. An attacker could possibly use this issue to execute arbitrary commands as the user invoking rclone. (CVE-2026-49980)

Ubuntu Security NoticesUSN-8781-1
Severity not listed

USN-8781-1: Linux kernel (NVIDIA Tegra) 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...

Vendor guidance

This update corrects flaws in the following subsystems: - ARM64 architecture; - User-space API (UAPI); - Kernel build system; - ARM32 architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; -...

Ubuntu Security NoticesUSN-8730-3
Severity not listed

USN-8730-3: Linux kernel (Azure) vulnerability

A security issue was discovered in the Linux kernel. An attacker could possibly use this to compromise the system. This update corrects flaws in the following subsystems: - IPv6 networking; - Netfilter;

Vendor guidance

This update corrects flaws in the following subsystems: - IPv6 networking; - Netfilter;

Ubuntu Security NoticesUSN-8761-2
Severity not listed

USN-8761-2: Linux kernel (Azure FIPS) 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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute Acceleration Framew...

Vendor guidance

This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute Acceleration Framework; - Drivers core; - Bluetooth drivers; - Arm Firmware Framewo...

Ubuntu Security NoticesUSN-8729-2
Severity not listed

USN-8729-2: Linux kernel (Raspberry Pi Real-time) 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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute Acceleration Framew...

Vendor guidance

This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute Acceleration Framework; - Drivers core; - Bluetooth drivers; - Arm Firmware Framewo...

Ubuntu Security NoticesUSN-8726-2
Severity not listed

USN-8726-2: 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...

Vendor guidance

This update corrects flaws in the following subsystems: - ARM64 architecture; - User-space API (UAPI); - Kernel build system; - ARM32 architecture; - RISC-V architecture; - S390 architecture; - x86 architecture; - Blo...

Ubuntu Security NoticesUSN-8725-2
Severity not listed

USN-8725-2: Linux kernel (AWS) 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: - NVIDIA Tegra memory controller driver; - File systems infrastructure; - Network file system (NF...

Vendor guidance

This update corrects flaws in the following subsystems: - NVIDIA Tegra memory controller driver; - File systems infrastructure; - Network file system (NFS) server daemon; - OCFS2 file system; - B.A.T.M.A.N.

Ubuntu Security NoticesUSN-8715-2
Severity not listed

USN-8715-2: Linux kernel (AWS 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-8714-3
Severity not listed

USN-8714-3: 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: - OCFS2 file system; - SCTP protocol; (CVE-2026-53043, CVE-2026-53224, CVE-2026-53225, CVE-2026-5...

Vendor guidance

This update corrects flaws in the following subsystems: - OCFS2 file system; - SCTP protocol; (CVE-2026-53043, CVE-2026-53224, CVE-2026-53225, CVE-2026-53246, CVE-2026-53309)

Ubuntu Security NoticesUSN-8779-2
Severity not listed

USN-8779-2: Bubblewrap regression

USN-8779-1 fixed vulnerabilities in Bubblewrap. Unfortunately, the fix for CVE-2026-87766 introduced a regression in symlink resolution, preventing certain Flatpak applications from launching. This update reverts that fix until a complete fix is available. We apologize for the...

Vendor guidance

USN-8779-1 fixed vulnerabilities in Bubblewrap.

Ubuntu Security NoticesUSN-8778-1
Severity not listed

USN-8778-1: GStreamer Good Plugins vulnerability

It was discovered that GStreamer Good Plugins did not limit the size of reassembly buffers when processing fragmented RTP packets. A remote attacker could possibly use this issue to cause GStreamer Good Plugins to use excessive resources, leading to a denial of service.

Ubuntu Security NoticesUSN-8777-1
Severity not listed

USN-8777-1: GNU Bison vulnerability

It was discovered that GNU Bison incorrectly handled grammar-defined configuration variables when generating HTML reports. An attacker could possibly use this issue to execute arbitrary code.

Ubuntu Security NoticesUSN-8775-1
Severity not listed

USN-8775-1: SQLite vulnerability

It was discovered that SQLite was vulnerable to a buffer overflow in the sqlar extension. If a user were tricked into opening a specially crafted SQLar archive, an attacker could cause a denial of service.

Ubuntu Security NoticesUSN-8736-2
Severity not listed

USN-8736-2: Perl vulnerabilities

USN-8736-1 fixed vulnerabilities in Perl. This update provides the corresponding fix for Perl on Ubuntu 24.04 LTS. Original advisory details: It was discovered that Perl incorrectly handled certain large inputs during regular expression matching. An attacker could possibly use...

Vendor guidance

USN-8736-1 fixed vulnerabilities in Perl.

Ubuntu Security NoticesUSN-8773-1
Severity not listed

USN-8773-1: GNU Guix vulnerability

It was discovered that GNU Guix incorrectly made build outputs accessible to local users before their file metadata was finalized. A local attacker could possibly use this issue to gain elevated privileges.

Ubuntu Security NoticesUSN-8514-2
Severity not listed

USN-8514-2: OpenSSH vulnerability

USN-8514-1 fixed a vulnerability in OpenSSH. This update provides the corresponding fix for Ubuntu 14.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: It was discovered that OpenSSH incorrectly handled file permissions when downloading files as root u...

Vendor guidance

USN-8514-1 fixed a vulnerability in OpenSSH.

Ubuntu Security NoticesUSN-8769-1
Severity not listed

USN-8769-1: phpseclib vulnerability

It was discovered that phpseclib did not perform padding validation in constant time when using AES in CBC mode. A remote attacker could possibly use this issue to conduct a padding oracle timing attack and obtain sensitive information.

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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