CVE-2026-53223

A flaw was found in the Linux kernel's networking component. This vulnerability allows a remote attacker to potentially access sensitive information or cause system instability. By sending specially crafted network packets, an attacker can exploit an issue in how the kernel handles timestamping f...

CVE-2026-53191

A flaw was found in the Linux kernel's iouring networking component. During bundle receive retries, an issue with inheriting the IORINGCQEFBUFMORE flag can cause the userspace to incorrectly advance the ring head. This memory handling error could lead to information disclosure or potentially allo...

SUSE SLES12: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2026:2583-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2583-1 advisory. Update to Firefox 140.12.0 ESR MFSA 2026-58, bsc1268071: - CVE-2026-12289: Privilege escalation in the Graphics: WebRender component. -...

CVE-2026-52984

A flaw was found in the Linux kernel's networking scheduler netem. The queue limit check in the netemenqueue function does not properly account for reordered packets, allowing the total queue occupancy to exceed its configured limit. This oversight can lead to a Denial of Service DoS condition,...

CVE-2026-53079

A flaw was found in the Linux kernel's networking scheduler netsched. When the network stack cleans up deferred packet lists, if the root queueing discipline qdisc does not implement the TCQFDEQUEUEDROPS flag, packets intended for release are not freed. This can lead to a memory leak, potentially...

CVE-2026-53264

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

firefox: thunderbird: Use-after-free in the Networking: HTTP component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Use-after-free in the Networking: HTTP component...

firefox: thunderbird: Same-origin policy bypass in the Networking: Cookies component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the Networking: Cookies component...

firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Networking component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Sandbox escape due to incorrect boundary conditions in the Networking component...

SUSE-SU-2026:22276-1 Security update for the Linux Kernel (Live Patch 0 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.5.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay...

SUSE-SU-2026:22384-1 Security update for the Linux Kernel (Live Patch 1 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.6.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay...

SUSE-SU-2026:22279-1 Security update for the Linux Kernel (Live Patch 4 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.9.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay...

SUSE-SU-2026:22283-1 Security update for the Linux Kernel (Live Patch 3 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.8.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay...

Important: Red Hat Security Advisory: containernetworking-plugins security update

An update for containernetworking-plugins is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.12.92 packages and security update

Red Hat OpenShift Container Platform release 4.12.92 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.12. Red Hat Product Security has rated this update as having a...

CVE-2026-53266 netfilter: bridge: make ebt_snat ARP rewrite writable

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebtsnat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source address rewrite behind skbensurewritableskb, 0. This is intentional: at the bridge ebtables hooks the Ethernet header is...

CVE-2026-53231

In the Linux kernel, the following vulnerability has been resolved: net: phy: don't try to setup PHY-driven SFP cages when using genphy We don't have support for PHY-driver SFP cages with the genphy code. On top of that, it was found by sashiko that running sfpbusaddupstream for genphy deadlocks,...

Important: containernetworking-plugins security update

The Container Network Interface CNI project consists of a specification and libraries for writing plug-ins for configuring network interfaces in Linux containers, along with a number of supported plug-ins. CNI concerns itself only with network connectivity of containers and removing allocated...

CVE-2026-52945

In the Linux kernel, the following vulnerability has been resolved: Revert "wireguard: device: enable threaded NAPI" This reverts commit 933466fc50a8e4eb167acbd0d8ec96a078462e9c which is commit db9ae3b6b43c79b1ba87eea849fd65efa05b4b2e upstream. We have had three independent production user report...

Astra Linux – Vulnerability in Firefox and Thunderbird

Incorrect boundary conditions in networking: JAR components. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8...