CISA
CISA: Microsoft SharePoint RCE flaw now actively exploited
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned on Wednesday that attackers have begun exploiting a high-severity Microsoft SharePoint remote code execution vulnerability. Tracked as CVE-2026-45659, this security flaw stems from a deserialization of untrusted data weakness, and it allows attackers with low privileges to execute arbitrary code on unpatched SharePoint servers in low-complexity attacks […]
CISA: Windows BlueHammer flaw now exploited by ransomware gangs
CISA confirmed on Monday that ransomware gangs have begun exploiting a high-severity Microsoft Defender privilege escalation vulnerability that has previously been abused in zero-day attacks. Dubbed BlueHammer, the security flaw (CVE-2026-33825) was leaked by a security researcher known as “Nightmare Eclipse” in early April, together with proof-of-concept exploit code, in protest at how the Microsoft Security Response […]
FBI: Russian hackers now target Signal backup recovery keys
The FBI and CISA are warning that a phishing campaign targeting Signal users tied to Russian intelligence services has evolved to steal Signal Backup Recovery Keys, allowing attackers to access victims’ historical messages. The updated public service announcement is an update to a March 2026 advisory that warned the threat actors were targeting users of commercial messaging […]
CISA sets urgent deadline to fix Cisco flaw exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is giving federal agencies until Sunday to patch a vulnerability in Cisco Unified Communications Manager Server that is being actively exploited. Identified as CVE-2026-20230, the security issue is server-side request forgery (SSRF) and has been added to the agency’s catalog of Known Exploited Vulnerabilities (KEV). Per Binding Operational […]
CISA warns of max severity Ubiquiti flaws exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning of hackers actively exploiting flaws in Ubiquity UniFi OS and Lantronix serial-to-ethernet servers. According to the BOD 26-04 directive, federal agencies have three days to apply available security updates or vendor-recommended mitigations. The Ubiquiti flaws that CISA added to its catalog of Known Exploited Vulnerabilities are: Ubiquiti released security updates for the […]
CISA: Splunk Enterprise flaw actively exploited, patch by Sunday
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged federal agencies to secure their systems by Sunday against a critical Splunk Enterprise vulnerability that is being exploited in attacks. Tracked as CVE-2026-20253, this security flaw affects Splunk Enterprise (versions 10.2.0 to 10.2.3 and 10.0.0 to 10.0.6) and allows remote attackers without privileges to create or truncate arbitrary […]
CISA warns Fortinet users to secure devices after FortiBleed leak
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) urged Fortinet customers to secure their devices after nearly 74,000 firewall and VPN credentials were exposed in a data leak dubbed “FortiBleed.” This warning comes after threat actors used compromised credentials to target internet-accessible Fortinet devices across government and private-sector organizations worldwide. “CISA is aware of global reports that malicious […]
CISA orders feds to patch max severity Joomla plugin flaw by Friday
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch a maximum-severity flaw in the Widget Factory Joomla Content Editor (JCE) plugin that is being actively exploited in the wild. Tracked as CVE-2026-48907, this vulnerability can be exploited by threat actors without privileges to achieve code execution via low-complexity attacks targeting Joomla […]
CISA warns of another cPanel plugin flaw exploited in attacks
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given U.S. government agencies three days to secure their servers against an actively exploited vulnerability (CVE-2026-54420) in the LiteSpeed cPanel user-end plugin. Tracked as CVE-2026-48172, this high-severity vulnerability was reported by Namecheap and allows attackers with FTP or web shell access to escalate privileges to root on […]
CISA orders feds to patch actively exploited Ivanti flaw by Sunday
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ordered government agencies to patch an actively exploited Ivanti Sentry flaw within three days, as mandated by the newly issued Binding Operational Directive (BOD) 26-04. Tracked as CVE-2026-10520, this maximum-severity vulnerability was found in Ivanti’s security gateway appliance (formerly known as MobileIron Sentry) and stems from an OS […]