Privilege Escalation
CISA warns of critical Linux Sudo flaw exploited in attacks
Hackers are actively exploiting a critical vulnerability (CVE-2025-32463) in the sudo package that enables the execution of commands with root-level privileges on Linux operating systems. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added this vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, describing it as “an inclusion of functionality from untrusted control sphere.” CISA has given federal […]
Crypto24 ransomware hits large orgs with custom EDR evasion tool
The Crypto24 ransomware group has been using custom utilities to evade security solutions on breached networks, exfiltrate data, and encrypt files. The threat group’s earliest activity was reported on GeekFeed forums in September 2024, though it never reached notable levels of notoriety. According to Trend Micro researchers tracking Crypto24’s operations, the hackers have hit several large organizations in the United […]
Over 29,000 Exchange servers unpatched against high-severity flaw
Over 29,000 Exchange servers exposed online remain unpatched against a high-severity vulnerability that can let attackers move laterally in Microsoft cloud environments, potentially leading to complete domain compromise. The security flaw (tracked as CVE-2025-53786) helps threat actors who gain administrative access to on-premises Exchange servers to escalate privileges within the organization’s connected cloud environment by […]
Microsoft warns of high-severity flaw in hybrid Exchange deployments
Microsoft has warned customers to mitigate a high-severity vulnerability in Exchange Server hybrid deployments that could allow attackers to escalate their privileges in Exchange Online cloud environments without leaving any traces. Exchange hybrid configurations connect on-premises Exchange servers to Exchange Online (part of Microsoft 365), allowing for seamless integration of email and calendar features between […]
ReVault flaws let hackers bypass Windows login on Dell laptops
ControlVault3 firmware vulnerabilities impacting over 100 Dell laptop models can allow attackers to bypass Windows login and install malware that persists across system reinstalls. Dell ControlVault is a hardware-based security solution that stores passwords, biometric data, and security codes within firmware on a dedicated daughterboard, known as the Unified Security Hub (USH). The five vulnerabilities, reported by […]
WordPress Motors theme flaw mass-exploited to hijack admin accounts
Hackers are exploiting a critical privilege escalation vulnerability in the WordPress theme “Motors” to hijack administrator accounts and gain complete control of a targeted site. The malicious activity was spotted by Wordfence, which had warned last month about the severity of the flaw, tracked under CVE-2025-4322, urging users to upgrade immediately. Motors, developed by StylemixThemes, […]
CISA warns of attackers exploiting Linux flaw with PoC exploit
CISA has warned U.S. federal agencies about attackers targeting a high-severity vulnerability in the Linux kernel’s OverlayFS subsystem that allows them to gain root privileges. This local privilege escalation security flaw (CVE-2023-0386) is caused by a Linux kernel improper ownership management weakness and was patched in January 2023 and publicly disclosed two months later. Multiple proof-of-concept (PoC) exploits […]
New Linux udisks flaw lets attackers get root on major Linux distros
Attackers can exploit two newly discovered local privilege escalation (LPE) vulnerabilities to gain root privileges on systems running major Linux distributions. The first flaw (tracked as CVE-2025-6018) was found in the configuration of the Pluggable Authentication Modules (PAM) framework on openSUSE Leap 15 and SUSE Linux Enterprise 15, allowing local attackers to gain the privileges of […]
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 […]
Microsoft shares script to restore inetpub folder you shouldn’t delete
Microsoft has released a PowerShell script to help restore an empty ‘inetpub’ folder created by the April 2025 Windows security updates if deleted. As Microsoft previously warned, this folder helps mitigate a high-severity Windows Process Activation privilege escalation vulnerability. In April, after installing the new security updates, Windows users suddenly found that an empty C:\Inetpub folder was […]