Latest cybersecurity reporting from selected sources.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned Tuesday that attackers are actively exploiting three vulnerabilities to hack Internet-exposed on-premises SharePoint Server instances. [...]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that attackers are exploiting vulnerabilities in the iCagenda and Balbooa Forms extensions for Joomla to achieve remote code execution through arbitrary file uploads. [...]

On July 2, 2026, CISA added CVE-2026-45659, a SharePoint Server RCE, to its Known Exploited Vulnerabilities catalog with a two-day patch deadline. Storm-2603 is using it to stage Warlock ransomware, living off the land the whole way. Here is why it matters, plus a free 12-rule Sigma pack to hunt it.

CISA confirms BlueHammer (CVE-2026-33825) is now used in ransomware attacks to gain SYSTEM privileges through Microsoft Defender. BlueHammer, tracked as CVE-2026-33825, has moved from proof-of-concept noise to real ransomware attacks in the wild, the US CISA confirms. BlueHammer allows attackers to escalate privileges locally in Microsoft Defender. The vulnerability, along with two other zero-days dubbed […]

FBI warns Russian spies now target Signal Backup Recovery Keys, enabling access to message history and long-term account takeover. The FBI and CISA updated their March 2026 warning about Russian intelligence phishing campaigns, and the new advisory adds a detail that wasn’t in the original: the operators have shifted their primary objective from stealing verification […]

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 FBI and CISA have updated their March warning about Russian intelligence phishing Signal accounts, and the operators have added a step: they now coax targets into handing over their Signal Backup Recovery Key

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday warned of active exploitation of a critical security flaw impacting Lantronix EDS5000 Series devices, urging Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by June 26, 2026

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday urged Fortinet customers with FortiGate appliances to take steps to secure against ongoing malicious activity aimed at thousands of internet-accessible devices

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." [...]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a maximum-severity security flaw impacting Widget Factory Joomla Content Editor (JCE) to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation

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. [...]

CISA, the FBI, the NSA, the Department of Energy, and other US government partners are warning that hackers are targeting internet-exposed automatic tank gauge (ATG) systems used to monitor fuel and liquid storage tanks across various critical infrastructure sectors. [...]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are exploiting vulnerabilities in the Linux kernel and Android operating system. [...]

Top Democrat Warns States Are Losing Federal Cyber Defense SupportA top U.S, Senate Democrat decried shrinking federal support for election security ahead of the November midterms, warning that cuts to the Cybersecurity and Infrastructure Security Agency could leave states without cyber defense or threat intelligence capabilities

Researchers dropped a reliable root exploit and it didn’t sit idle for long CISA is warning that a newly-disclosed Linux kernel bug dubbed "CopyFail" is already being exploited, just days after researchers dropped a working root-level exploit.…

Prioritize resilience over productivity, say CISA, NCSC and their friends from Oz, NZ, Canada Information security agencies from the nations of the Five Eyes security alliance have co-authored guidance on the use of agentic AI that warns the technology will likely misbehave and amplifies organizations’ existing frailties, and therefore recommend slow and careful adoption of the tech.…

The guidance warns that agents capable of taking real-world actions on networks are already inside critical infrastructure, and most organizations are granting them far more access than they can safely monitor or control. The post US government, allies publish guidance on how to safely deploy AI agents appeared first on CyberScoop.

The agency added the flaw to the KEV list days after hosting providers confirmed active, ongoing attacks. The post cPanel’s authentication bypass bug is being exploited in the wild, CISA warns appeared first on CyberScoop.

GrassMarlin leaks sensitive information, provided your targeting phishing skills are sharp enough The Cybersecurity and Infrastructure Security Agency (CISA) is warning anyone who uses GrassMarlin, a tool developed by the National Security Agency (NSA), about a new vulnerability that attackers can use to snoop on sensitive information.…