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. [...]

Fortinet customers are seeing attackers exploiting a patch bypass for a previously fixed critical FortiGate authentication vulnerability (CVE-2025-59718) to hack patched firewalls. [...]

Patch Now, as Scans and Hack Attempts Happening 'at Scale,' Security Experts WarnHacker interest is high in a days-old vulnerability in widely used web application framework React, with dozens of organizations already falling victim to it, cybersecurity experts warn. React is used by an estimated two-fifths of the world's top 10,000 websites.

Flaw Enabled Remote Code Execution, Say AWS ResearchersResearchers from AWS said they spotted a hacking campaign taking advantage of a zero-day vulnerability in Cisco network access control software before the routing giant patched it earlier this year. The flaw let attackers perform pre-authentication remote code execution.

Also, North Korean Hackers Remotely Wipe Android DevicesThis week, the U.K. government probed Chinese electric buses for a kill switch, APT37 abused Google's Find Hub in South Korea, Conduent said its January hack will cost it more, Hyundai disclosed a breach and Patch Tuesday. OWASP added two new categories to its Top 10 web application vulnerabilities.

Chinese Hackers Target European Diplomats with LNK File FlawChinese nation-state hackers are exploiting a Windows vulnerability to hack European diplomatic outposts, say security researchers - but operating system giant Microsoft says the flaw doesn't merit a patch. Hackers used a flaw already compromised by North Korea and Russia.

Concerns Grow Over F5 Hacking Amid Stalled Government ShutdownFederal officials are scrambling to contain nation-state hackers exploiting stolen source code from networking devices and software maker F5 amid staffing pressures created by the ongoing government shutdown. Stolen files reportedly include undisclosed vulnerabilities F5 had been researching.

Federal Agencies Ordered to Patch or Decommission F5 Devices Amid Imminent RiskAn advanced nation-state threat actor stole sensitive F5 source code and vulnerability data to craft tailored exploits, prompting an emergency directive amid a U.S. government shutdown that has left cyber defenses strained and federal networks at "imminent risk."

The security landscape now moves at a pace no patch cycle can match. Attackers aren’t waiting for quarterly updates or monthly fixes—they adapt within hours, blending fresh techniques with old, forgotten flaws to create new openings. A vulnerability closed yesterday can become the blueprint for tomorrow’s breach

A Chinese hacking group is deploying Warlock ransomware on Microsoft SharePoint servers vulnerable to widespread attacks targeting the recently patched ToolShell zero-day exploit chain. [...]

Vulnerability Could Enable Remote Code Injection AttacksWhen the lights start flickering in homes equipped with Schneider Electric end-of-life smart switches, it could be hackers, now that the French company disclosed a remotely exploitable vulnerability that won't receive a patch. No hacking has been reported to date.

The threat actors behind the zero-day exploitation of a recently-patched security vulnerability in Microsoft Windows have been found to deliver two new backdoors called SilentPrism and DarkWisp

Veeam has patched a critical remote code execution vulnerability tracked as CVE-2025-23120 in its Backup & Replication software that impacts domain-joined installations. [...]

Telecoms Still Falling to Chinese Nation-State Hacking Group, Researchers WarnA Chinese cyber espionage group tracked as Salt Typhoon and tied to the mass hacking of telecommunications networks in the U.S. and dozens of other countries has been continuing to seek and hack unpatched equipment, including exploiting two long-patched vulnerabilities in Cisco gear.

AG Says HealthAlliance Tried But Failed to Fix Zero-Day Flaw That Led to ExploitNew York State has levied a $550,000 fine against a healthcare group that tried - but failed - to patch a critical zero-day vulnerability in a Citrix NetScaler appliance used for telemedicine. Hackers exploited the flaw, stealing 196 gigabytes of data in an incident affecting 242,000 people.

Cybersecurity Officials Urge to Prioritize Fixing These 15 Most-Exploited FlawsWhich vulnerabilities need fixing first to best block nation-state and other hacking attempts? Enter the latest Five Eyes intelligence partnership list of the 15 flaws most targeted by attackers, of which 11 were zero-days. Many organizations have yet to patch them all.

QNAP has fixed a second zero-day vulnerability exploited at the Pwn2Own Ireland 2024 hacking contest to gain a root shell and take over a TS-464 NAS device. [...]

The fourth day of Pwn2Own Ireland 2024 marked the end of the hacking competition with more than $1 million in prizes for over 70 unique zero-day vulnerabilities in fully patched devices. [...]

Kia Website Vulnerabilities Allowed Remote Car ControlNow patched vulnerabilities in online services from carmaker Kia allowed attackers to remotely control vehicle functions using only a license plate number, putting millions of cars at risk. The flaws were present in the South Korean automaker's official website for owners and in its iOS app.

Urgent Fix Addresses Critical Flaw That Allows Remote Code ExecutionProgress Software released an urgent patch Thursday to fix a critical vulnerability that hackers could exploit to launch remote attacks. The company is no stranger to urgent patching. It was at the center of a Memorial Day 2023 mass hacking incident.