Kernel | Breaking Cybersecurity News | The Hacker News

Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local attackers to gain root access, making it the third such bug to be identified in the kernel within a span of two weeks. Codenamed Fragnesia , the security vulnerability is tracked as CVE-2026-46300 (CVSS score: 7.8) and is rooted in the Linux kernel's XFRM ESP-in-TCP subsystem. It was discovered by researcher William Bowling of Zellic and the V12 security team. "The vulnerability allows unprivileged local attackers to modify read-only file contents in the kernel page cache and achieve root privileges through a deterministic page-cache corruption primitive," Google-owned Wiz said . Advisories have been released by multiple Linux distributions - AlmaLinux Amazon Linux CloudLinux Debian Gentoo Red Hat Enterprise Linux SUSE Ubuntu "This is a separate bug in the ESP/XFRM from Dirty Frag which has received its own patch,...

Google on Monday disclosed that a high-severity security flaw impacting an open-source Qualcomm component used in Android devices has been exploited in the wild. The vulnerability in question is CVE-2026-21385 (CVSS score: 7.8), a buffer over-read in the Graphics component. "Memory corruption when adding user-supplied data without checking available buffer space," Qualcomm said in an advisory, describing it as an integer overflow. The chipmaker said the flaw was reported to it through Google's Android Security team on December 18, 2025. Customers were notified of the security defect on February 2, 2026. There are currently no details on how the vulnerability is being exploited in the wild. However, Google acknowledged in its monthly Android security bulletin that "there are indications that CVE-2026-21385 may be under limited, targeted exploitation." Google's March 2026 update contains patches for a total of 129 vulnerabilities, including a critica...

Microsoft has shed light on a now-patched security flaw impacting Apple macOS that, if successfully exploited, could have allowed an attacker running as "root" to bypass the operating system's System Integrity Protection ( SIP ) and install malicious kernel drivers by loading third-party kernel extensions. The vulnerability in question is CVE-2024-44243 (CVSS score: 5.5), a medium-severity bug that was addressed by Apple as part of macOS Sequoia 15.2 released last month. The iPhone maker described it as a "configuration issue" that could permit a malicious app to modify protected parts of the file system. "Bypassing SIP could lead to serious consequences, such as increasing the potential for attackers and malware authors to successfully install rootkits, create persistent malware, bypass Transparency, Consent and Control (TCC), and expand the attack surface for additional techniques and exploits," Jonathan Bar Or of the Microsoft Threat Intelligen...