RLSA-2026:13537 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

SUSE CVE-2026-43149

In the Linux kernel, the following vulnerability has been resolved: net: wan/fslucchdlc: Fix dmafreecoherent in uhdlcmemclean The priv-rxbuffer and priv-txbuffer are alloc'd together as contiguous buffers in uhdlcinit but freed as two buffers in uhdlcmemclean. Change the cleanup to only call...

firefox -- Use-after-free

https://bugzilla.mozilla.org/showbug.cgi?id=2034352 reports: Use-after-free in the DOM: Networking component...

PT-2026-38428

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150.0.2 Firefox ESR versions prior to 140.10.2 Firefox ESR versions prior to 115.35.2 Thunderbird versions prior to 150.0.2 Thunderbird versions prior to 140.10.2 Description A use-after-free issue exists within the D...

Linux Distros Unpatched Vulnerability : CVE-2026-8090

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0....

CVE-2026-8090

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2...

CVE-2026-43238

A flaw was found in the Linux kernel. A divide-by-zero vulnerability exists in the tcfskbedithash function within the networking scheduler component. This occurs when calculating the mappingmod value, where a large range wraps to zero, leading to a division by zero error. This flaw can cause a...

CVE-2026-43216

A flaw was found in the Linux kernel's networking subsystem. Specifically, the skbmaytxtimestamp function can attempt to acquire a lock in an Interrupt Request IRQ context, which is an inappropriate execution environment for this operation. This can occur when certain network drivers process...

CVE-2026-43208

A flaw was found in the Linux kernel's networking component. An incorrect assumption about the size and immutability of the Receive Packet Steering RPS table could lead to an out-of-bounds memory access. This vulnerability, occurring during the computation of flowid in the setrpscpu function, cou...

CVE-2026-43194

A flaw was found in the Linux kernel's networking subsystem. Specifically, the kernel incorrectly processes transmit errors for Generic Segmentation Offload GSO frames. When a single segment within a GSO frame is lost, the system may misinterpret this as a complete loss of the entire frame. This...

BIT-JAVA-2026-34282

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Networking. Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10;...

BIT-JAVA-2024-21012

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Networking. Supported versions that are affected are Oracle Java SE: 11.0.22, 17.0.10, 21.0.2, 22; Oracle GraalVM for JDK: 17.0.10, 21.0.2, 22; Oracle GraalVM...

BIT-JAVA-2023-22006

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition, Oracle GraalVM for JDK product of Oracle Java SE component: Networking. Supported versions that are affected are Oracle Java SE: 11.0.19, 17.0.7, 20.0.1; Oracle GraalVM Enterprise Edition: 20.3.10, 21.3.6, 22.3.2; Oracle...

BIT-JAVA-MIN-2023-21937

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Networking. Supported versions that are affected are Oracle Java SE: 8u361, 8u361-perf, 11.0.18, 17.0.6, 20; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5 and 22.3.1. Difficult to explo...

BIT-JAVA-2023-21937

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Networking. Supported versions that are affected are Oracle Java SE: 8u361, 8u361-perf, 11.0.18, 17.0.6, 20; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5 and 22.3.1. Difficult to explo...

BIT-JAVA-2021-2341

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Networking. Supported versions that are affected are Java SE: 7u301, 8u291, 11.0.11, 16.0.1; Oracle GraalVM Enterprise Edition: 20.3.2 and 21.1.0. Difficult to exploit vulnerability allows...

BIT-JAVA-2020-2659

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Networking. Supported versions that are affected are Java SE: 7u241 and 8u231; Java SE Embedded: 8u231. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols...

Security update for the Linux Kernel (Live Patch 5 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise kernel 6.4.0-150700.53.19 fixes various security issues The following security issues were fixed: CVE-2025-39977: futex: Prevent use-after-free during requeue-PI bsc1252048. CVE-2025-71066: net/sched: ets: Always remove class from active list before...

CVE-2026-43252

CVE-2026-43252 concerns the Linux kernel MPTCP subsystem (Multiswitch TCP). The issue arises in the in-kernel MPTCP path for removing endpoints, where code path __mark_subflow_endp_available/mptcp_pm_nl_fullmesh/mptcp_pm_nl_set_flags_all/mptcp_pm_nl_set_flags can trigger a kernel warning when a s...

CVE-2026-43216

In the Linux kernel, the following vulnerability has been resolved: net: Drop the lock in skbmaytxtimestamp skbmaytxtimestamp may acquire sock::skcallbacklock. The lock must not be taken in IRQ context, only softirq is okay. A few drivers receive the timestamp via a dedicated interrupt and comple...