CISA
CISA flags PaperCut RCE bug as exploited in attacks, patch now
CISA warns that threat actors are exploiting a high-severity vulnerability in PaperCut NG/MF print management software, which can allow them to gain remote code execution in cross-site request forgery (CSRF) attacks. The software developer says that more than 100 million users use its products across over 70,000 organizations worldwide. The security flaw (tracked as CVE-2023-2533 […]
CISA warns of hackers exploiting SysAid vulnerabilities in attacks
CISA has warned that attackers are actively exploiting two security vulnerabilities in the SysAid IT service management (ITSM) software to hijack administrator accounts. The two unauthenticated XML External Entity (XXE) flaws, tracked as CVE-2025-2775 and CVE-2025-2776, were reported by watchTowr Labs security researchers in December 2024 and patched in March with the release of SysAid On-Prem version […]
CISA and FBI warn of escalating Interlock ransomware attacks
CISA and the FBI warned on Tuesday of increased Interlock ransomware activity targeting businesses and critical infrastructure organizations in double extortion attacks. Today’s advisory was jointly authored with the Department of Health and Human Services (HHS) and the Multi-State Information Sharing and Analysis Center (MS-ISAC) and it provides network defenders with indicators of compromise (IOCs) collected […]
CISA tags Citrix Bleed 2 as exploited, gives agencies a day to patch
The U.S. Cybersecurity & Infrastructure Security Agency has confirmed active exploitation of the CitrixBleed 2 vulnerability (CVE-2025-5777) in Citrix NetScaler ADC and Gateway and is giving federal agencies one day to apply fixes. Such a short deadline for installing the patches is unprecedented since CISA released the Known Exploited Vulnerabilities (KEV) catalog, showing the severity of […]
U.S. warns of Iranian cyber threats on critical infrastructure
U.S. cyber agencies, the FBI, and NSA issued an urgent warning today about potential cyberattacks from Iranian-affiliated hackers targeting U.S. critical infrastructure. CISA says there are no indications of an ongoing campaign but urges critical infrastructure organizations and other potential targets to monitor their defense due to the current unrest in the Middle East and cyber […]
CISA: AMI MegaRAC bug enabling server hijacks exploited in attacks
CISA has confirmed that a maximum severity vulnerability in AMI’s MegaRAC Baseboard Management Controller (BMC) software is now actively exploited in attacks. The MegaRAC BMC firmware provides remote system management capabilities for troubleshooting servers without being physically present, and it’s used by several vendors (including HPE, Asus, and ASRock) that supply equipment to cloud service […]
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 […]
CISA warns of ConnectWise ScreenConnect bug exploited in attacks
CISA is alerting federal agencies in the U.S. of hackers exploiting a recently patched ScreenConnect vulnerability that could lead to executing remote code on the server. The agency is warning that four other security problems affecting ASUS routers and the Craft content management system (CMS) are also actively exploited. Improper authentication in ConnectWise ScreenConnect On […]
CISA tags recently patched Chrome bug as actively exploited
On Thursday, CISA warned U.S. federal agencies to secure their systems against ongoing attacks exploiting a high-severity vulnerability in the Chrome web browser. Solidlab security researcher Vsevolod Kokorin discovered the flaw (CVE-2025-4664) and shared technical details online on May 5th. Google released security updates to patch it on Wednesday. As Kokorin explained, the vulnerability is due to insufficient policy enforcement […]
CISA warns of hackers targeting critical oil infrastructure
CISA warned critical infrastructure organizations of “unsophisticated” threat actors actively targeting the U.S. oil and natural gas sectors. While these attacks use very basic tactics to compromise their targets’ industrial control systems (ICS) and operational technology (OT) equipment, CISA also cautioned that they could still lead to significant impact, including physical damage and disruptions. “CISA is increasingly aware of unsophisticated […]