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The Hacker News
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Microsoft Warns of Two Actively Exploited Defender Vulnerabilities

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild.The former, tracked…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

SUSE Linux Micro 6.2 iproute2 Low Terminal Lock Up 2026-21582-1

An update that solves one vulnerability, contains one feature and has two fixes can now be installed.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 43 Kernel 7.0.7 Important Fragnesia Patch FEDORA-2026-5e5a0f9621

The 7.0.7 stable kernel update contains a number of important fixes across the tree. It also patches up a vulnerable codepath for fragnesia that was not in the…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 43 PHP 8.4.21 Important Bug Fixes CVE-2026-7262 2026-c4d1ca4f16

PHP version 8.4.21 (07 May 2026) Core: Fixed bug GH-19983 (GC assertion failure with fibers, generators and destructors). (iliaal) Fixed bug GH-21478 (Forward …

Linux PHP

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 44 Kernel Update 7.0.7 Important Franesia Fix FEDORA-2026-6b173ffc2a

The 7.0.7 stable kernel update contains a number of important fixes across the tree. It also patches up a vulnerable codepath for franesia that was not in the …

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

Linux Kernel Fragnesia Critical Privilege Escalation CVE-2026-46300

Linux administrators are once again dealing with a familiar problem: a local Linux foothold that can potentially become full root access.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian DSA-6266-1 nghttp2 Critical DoS Exploit CVE-2026-27135

It was discovered that nghttp2, an implementation of the HTTP/2 protocol, could be crashed via an assertion failure. A remote attacker could exploit this to ca…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 42 Kernel Urgent Security Fragnesia CVE-2026-46299 Notice

The 6.19.14-102 stable kernel update contains a fix for the Fragnesia CVE-2026-46300.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Ubuntu LTS USN-4820-1 nginx Moderate Security Patch CVE-2026-27136

A vulnerabilitie was discovered in nghttp2, a server, proxy and client implementing HTTP/2. CVE-2026-27135 Fix missing iframstate validations to avoid assertio…

Linux Nginx

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

openSUSE python-jupyterlab Important Auth Theft Fix CVE-2026-40171

An update that fixes one vulnerability is now available.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

openSUSE Backports SLE-15-SP7 Tor Major Security Patch 2026-XYZ-2

An update that fixes 6 vulnerabilities is now available.

Linux

The Hacker News
The Hacker News Vulnerabilities

[Webinar] How Modern Attack Paths Cross Code, Pipelines, and Cloud

TL;DR: Stop chasing thousands of "toast" alerts. Join experts from Wiz to learn how hackers connect tiny flaws to build a "Lethal Chain" to your data—and how t…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian 11 DLA-4580-1 exim4 Critical Remote Code Execution Patch

A vulnerability has been discovered in the Exim mail transport agent, which may result in remote code execution. For Debian 11 bullseye, this problem has been …

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Breaches & leaks

Debian exim4 Important Denial of Service Remote Code Execution DSA-6265-1

Several vulnerabilities were discovered in the Exim mail transport agent, which may result in remote code execution, denial of service or an information leak. …

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 43 dotnet10.0 Important Runtime Fix CVE-2026-40372

Update to .NET SDK 10.0.107 and Runtime 10.0.7 Fixes: CVE-2026-40372 Release Notes: SDK: https://github.com/dotnet/core/blob/main/release- notes/10.0/10.0.7/10…

Linux GitHub

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 42 Update on Key Dotnet 10.0 Runtime Vulnerability CVE-2026-40373

Update to .NET SDK 10.0.107 and Runtime 10.0.7 Fixes: CVE-2026-40372 Release Notes: SDK: https://github.com/dotnet/core/blob/main/release- notes/10.0/10.0.7/10…

Linux GitHub

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 42 Kernel Important Dirtyfrag Fix CVE-2026-43284

The 6.19.14-101 stable update contains a fix for the dirtyfrag vulnerability. This covers CVE-2026-43284 and CVE-2026-43500

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian Bookworm Postorius Important Cross-Site Scripting Fix DSA-6257-1

A cross-site scripting vulnerability was discovered in Postorius, the administrative web frontend for Mailman 3. For the oldstable distribution (bookworm), thi…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Slackware 15.0 Mozilla-Thunderbird Vital Buffer Overflow Patch 2026-128-02

New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues.

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Slackware 15.0 OS Dangerous Escalation Vulnerability Update SSA-2026-128-02

New kernel packages are available for Slackware 15.0 and -current to fix a security issue.

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

Ubuntu Dirty Frag Important Local Privilege Escalation Exploit

Just weeks after Linux defenders began responding to Copy Fail , researchers have disclosed another serious privilege escalation vulnerability that can deliver…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 44 pyOpenSSL Important X509Name Field Fix CVE-2026-40475

Update to pyOpenSSL 26.1.0 This update adds support for cryptography v47 and fixes a single security issue: Fixed X509Name field setters to correctly pass the …

Linux OpenSSL

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian 11 PyJWT Critical Header Parameter Issue DLA-4564-1 CVE-2026-32597

It was discovered that PyJWT, a Python implementation of JSON Web Token did not validate the crit (Critical) Header Parameter defined in RFC 7515 §4.1.11. When…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian LXD Critical Issues Denial of Service CVE-2026-40197 DSA-6247-1

Multiple security issues were discovered in LXD, a system container and virtual machine manager, which could result in denial of service. For the oldstable dis…

Linux Docker