Latest cybersecurity reporting from selected sources.

A security researcher has released a new Microsoft Defender zero-day exploit named "RoguePlanet" just hours after Microsoft fixed two previously disclosed flaws during June 2026 Patch Tuesday. [...]

Google fixed a new Chrome zero-day, tracked as CVE-2026-11645, in the V8 JavaScript engine, which is already being exploited in the wild. Google released emergency updates to address a new Chrome zero-day vulnerability, tracked as CVE-2026-11645, that has been exploited in the wild. This flaw is the fifth Chrome zero-day that is being exploited in […]

AI Tool Used to Discover Bugs, Which Included 2 Maximum Severity VulnerabilitiesResearchers at security firm AISLE said they recently identified 38 vulnerabilities, including two maximum-severity zero-day flaws in OpenEMR, an open-source electronic medical record software platform used by about 100,000 healthcare providers globally. OpenEMR has patched the problems.

Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its fourth zero-day of 2026, and an emergency update for Adobe Reader nixes an actively exploited flaw that can lead to remote code execution.

Google has fixed the fourth Chrome vulnerability exploited in zero-day attacks since the start of the year. [...]

Also: EU Bans AI Tools, Notepad++ Secures Updater, Apple Patches iOS Zero-DayThis week, Cambodia shuttered 200 scam centers. EU Parliament banned AI tools. Canada Goose disputed a ShinyHunters leak. Notepad++ patched an updater flaw. Apple fixed a decades-old iOS zero-day. BeyondTrust and Dell patched critical flaws under active exploitation.

Cisco has fixed a critical Unified Communications and Webex Calling remote code execution vulnerability, tracked as CVE-2026-20045, that has been actively exploited as a zero-day in attacks. [...]

Christmas comes early for attackers this year Two high-severity Android bugs were exploited as zero-days before Google issued a fix, according to its December Android security bulletin. …

Microsoft this week pushed security updates to fix more than 60 vulnerabilities in its Windows operating systems and supported software, including at least one zero-day bug that is already being exploited. Microsoft also fixed a glitch that prevented some Windows 10 users from taking advantage of an extra year of security updates, which is nice because the zero-day flaw and other critical weaknesses patched today affect all versions of Windows, including Windows 10.

'Precision espionage campaign' began months before the flaw was fixed A previously unknown Android spyware family called LANDFALL exploited a zero-day in Samsung Galaxy devices for nearly a year, installing surveillance code capable of recording calls, tracking locations, and harvesting photos and logs before Samsung finally patched it in April.…

QNAP has fixed seven zero-day vulnerabilities that security researchers exploited to hack QNAP network-attached storage (NAS) devices during the Pwn2Own Ireland 2025 competition. [...]

Microsoft has fixed over 170 CVEs in October’s Patch Tuesday, including six zero-day vulnerabilities

Oracle has silently fixed an Oracle E-Business Suite vulnerability (CVE-2025-61884) that was actively exploited to breach servers, with a proof-of-concept exploit publicly leaked by the ShinyHunters extortion group. [...]

Oracle has silently fixed an Oracle E-Business Suite vulnerability (CVE-2025-61884) that was actively exploited to breach servers, with a proof-of-concept exploit publicly leaked by the ShinyHunters extortion group. [...]

A similar vuln on Apple devices was used against 'specific targeted users' Samsung has fixed a critical flaw that affects its Android devices - but not before attackers found and exploited the bug, which could allow remote code execution on affected devices.…

WhatsApp has fixed a zero-day vulnerability linked to a sophisticated cyber-attack

Citrix fixed three NetScaler ADC and NetScaler Gateway flaws today, including a critical remote code execution flaw tracked as CVE-2025-7775 that was actively exploited in attacks as a zero-day vulnerability. [...]

A recently fixed WinRAR vulnerability tracked as CVE-2025-8088 was exploited as a zero-day in phishing attacks to install the RomCom malware. [...]

VMware fixed four vulnerabilities in VMware ESXi, Workstation, Fusion, and Tools that were exploited as zero-days during the Pwn2Own Berlin 2025 hacking contest in May 2025. [...]

Google has released emergency updates to patch another Chrome zero-day vulnerability exploited in attacks, marking the fourth such flaw fixed since the start of the year. [...]