Latest cybersecurity reporting from selected sources.

NightmareEclipse Says Mitigation Can Exhaust Disk Space, Crash AppsMicrosoft's patch for CVE-2026-50656, known as RoguePlanet, has sparked fresh criticism after researcher NightmareEclipse alleged the mitigation can exhaust disk space, crash applications and leak memory, extending a months-long dispute over Microsoft's handling of multiple zero-day disclosures.

Vendor Details Mitigations, Promises Patched PAN-OS Software in Coming WeeksPalo Alto Networks warned that a critical vulnerability in the PAN-OS software that runs its firewalls is being actively exploited in the wild by attackers. The vendor detailed temporary mitigations and promised to release updated software to fully patch the flaw later this month.

Mitigation: SSO Access Restricted After Attackers Compromised Fully Patched DevicesNetwork security giant Fortinet locked out cloud customers from its single sign-on service until they update device firmware with a patch against active attacks exploiting an improper access control zero day. Only Fortinet devices running the latest, patched firmware versions can use Fortinet SSO.

Patches Issued for MongoBleed as Ransomware Groups Target Flaw to Steal DataTens of thousands of internet-exposed MongoDB databases are at risk as attackers actively target a critical vulnerability in the software to steal sensitive data, with ransomware groups having joined the fray, researchers warn. MongoDB has issued patches and mitigation advice.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged federal agencies to patch the recent React2Shell vulnerability by December 12, 2025, amid reports of widespread exploitation

Silent Patch Tuesday mitigation ends ability to hide malicious commands in .lnk files Microsoft has quietly closed off a critical Windows shortcut file bug long abused by espionage and cybercrime networks.…

Security Experts Advise Immediate Patching; Zero-Day Attacks Began Last MonthAffiliates of Russian-speaking ransomware operation Medusa began targeting a zero-day vulnerability in widely used Fortra GoAnywhere Managed File Transfer software one week before the vendor issued a security alert, patch and mitigation instructions for the flaw, say security experts.

Cisco is urging customers to patch two security flaws impacting the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software, which it said have been exploited in the wild

Apple has patched a zero-day vulnerability being exploited in targeted attacks

​AMD has released mitigation and firmware updates to address a high-severity vulnerability that can be exploited to load malicious CPU microcode on unpatched devices. [...]

Factory resets and apply patches is the advice amid fortnight delay for other appliances The cybersecurity industry is urging those in charge of defending their orgs to take mitigation efforts "seriously" as Ivanti battles two dangerous new vulnerabilities, one of which was already being exploited as a zero-day.…

Users of Cleo-managed file transfer software are being urged to ensure that their instances are not exposed to the internet following reports of mass exploitation of a vulnerability affecting fully patched systems

The second zero-day vulnerability found in Windows NTLM in the past two months paves the way for relay attacks and credential theft. Microsoft has no patch, but released updated NTLM cyberattack mitigation advice.

Microsoft has disabled a fix for a BitLocker security feature bypass vulnerability due to firmware incompatibility issues that were causing patched Windows devices to go into BitLocker recovery mode. [...]

Many versions still without fixes while sophisticated attackers bypass mitigations Ivanti has finally released the first round of patches for vulnerability-stricken Connect Secure and Policy Secure gateways, but in doing so has also found two additional zero-days, one of which is under active exploitation.…

US Agencies Told to Remove Ivanti's Affected Products From Federal NetworksThe U.S. Cybersecurity and Infrastructure Security Agency directed federal agencies to implement mitigation measures for two zero-day exploits that affect Ivanti’s popular VPN products while they await a patch, in what one official described as "a rapidly evolving situation."

CISA’s advisory provides mitigations for vulnerabilities in ICS products used in critical infrastructure industries like energy, manufacturing and transportation

Patches will be available in late January and February, but until then, customers must take mitigation measures.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has given a November 17, 2023, deadline for federal agencies and organizations to apply mitigations to secure against a number of security flaws in Juniper Junos OS that came to light in August

Good news... more patches, this time available proactively