Kernel
Chinese state hackers use rootkit to hide ToneShell malware activity
A new sample of the ToneShell backdoor, typically seen in Chinese cyberespionage campaigns, has been delivered through a kernel-mode loader in attacks against government organizations. The backdoor has been attributed to the Mustang Panda group, also known as HoneyMyte or Bronze President, that usually targets government agencies, NGOs, think tanks, and other high-profile organizations worldwide. Security researchers at Kaspersky […]
CISA: High-severity Linux flaw now exploited by ransomware gangs
CISA confirmed on Thursday that a high-severity privilege escalation flaw in the Linux kernel is now being exploited in ransomware attacks. While the vulnerability (tracked as CVE-2024-1086) was disclosed on January 31, 2024, as a use-after-free weakness in the netfilter: nf_tables kernel component and was fixed via a commit submitted in January 2024, it was first introduced […]
Google fixes actively exploited Android flaws in September update
Google has released the September 2025 security update for Android devices, addressing a total of 84 vulnerabilities, including two actively exploited flaws. The two flaws that were detected as exploited in zero-day attacks are CVE-2025-38352, an elevation of privilege in the Android kernel, and CVE-2025-48543, also an elevation of privilege problem in the Android Runtime component. Google noted […]
ASUS Armoury Crate bug lets attackers get Windows admin privileges
A high-severity vulnerability in ASUS Armoury Crate software could allow threat actors to escalate their privileges to SYSTEM level on Windows machines. The security issue is tracked as CVE-2025-3464 and received a severity score of 8.8 out of 10. It could be exploited to bypass authorization and affects the AsIO3.sys of the Armoury Crate system management software. Armoury […]
CISA orders agencies to patch Linux kernel bug exploited in attacks
CISA has ordered federal agencies to secure their systems within three weeks against a high-severity Linux kernel flaw actively exploited in attacks. Tracked as CVE-2024-53104, the security bug was first introduced in kernel version 2.6.26 and was patched by Google for Android users on Monday. “There are indications that CVE-2024-53104 may be under limited, targeted exploitation,” the Android February 2025 […]
Google fixes Android kernel zero-day exploited in attacks
The January 2025 Android security updates patch 48 vulnerabilities, including a zero-day kernel vulnerability tagged as exploited in the wild. This high-severity zero-day (tracked as CVE-2024-53104) is a privilege escalation security flaw in the Android Kernel’s USB Video Class driver that allows authenticated local threat actors to elevate privileges in low-complexity attacks. The issue occurs because the driver […]
Windows kernel bug now exploited in attacks to gain SYSTEM privileges
CISA has warned U.S. federal agencies to secure their systems against ongoing attacks targeting a high-severity Windows kernel vulnerability. Tracked as CVE-2024-35250, this security flaw is due to an untrusted pointer dereference weakness that allows local attackers to gain SYSTEM privileges in low-complexity attacks that don’t require user interaction. While Microsoft didn’t share more details in a security […]
Google fixes Android kernel zero-day exploited in targeted attacks
Android security updates this month patch 46 vulnerabilities, including a high-severity remote code execution (RCE) exploited in targeted attacks. The zero-day, tracked as CVE-2024-36971, is a use after free (UAF) weakness in the Linux kernel’s network route management. It requires System execution privileges for successful exploitation and allows altering the behavior of certain network connections. Google says that “there […]