Latest cybersecurity reporting from selected sources.

LegacyHive PoC exposes a Windows Privilege Escalation flaw affecting fully patched Windows desktop and server systems. Just hours after Microsoft’s July 2026 Patch Tuesday, security researcher Nightmare Eclipse, also known as Chaotic Eclipse, published a new Windows zero-day proof-of-concept called LegacyHive. This time, the target is the Windows User Profile Service (ProfSvc), and unlike the […]

Security researcher Chaotic Eclipse (aka Nightmare-Eclipse) has released a new proof-of-concept (PoC) exploit called LegacyHive

The researcher Chaotic Eclipse released a PoC for the RoguePlanet Microsoft Defender zero-day, which can grant SYSTEM privileges on fully patched Windows systems. Security researcher Chaotic Eclipse, also known as Nightmare-Eclipse, has published a new proof-of-concept exploit for a RoguePlanet Microsoft Defender zero-day. The flaw relies on a race condition that can provide attackers with […]

A cybersecurity researcher has released a proof-of-concept exploit for a Windows privilege escalation zero-day dubbed "MiniPlasma" that lets attackers gain SYSTEM privileges on fully patched Windows systems.  [...]

Proof-of-concept exploit code is publicly available for two other flaws in this month's Patch Tuesday. In total, the company issued patches for more than 1,150 flaws this year.

Microsoft on Thursday released out-of-band security updates to patch a critical-severity Windows Server Update Service (WSUS) vulnerability with a proof-of-concept (Poc) exploit publicly available and has come under active exploitation in the wild

Microsoft has released out-of-band (OOB) security updates to patch a critical-severity Windows Server Update Service (WSUS) vulnerability with publicly available proof-of-concept exploit code. [...]

Microsoft on Tuesday released software updates to fix at least 70 vulnerabilities in Windows and related products, including five zero-day flaws that are already seeing active exploitation. Adding to the sense of urgency with this month's patch batch from Redmond are fixes for two other weaknesses that now have public proof-of-concept exploits available.

Proof-of-Concept Exploit 'LDAP Nightmare' Crashes 'Any Unpatched Windows Server'Security experts are urging all organizations that use Microsoft Windows to ensure they install patches, released last month, to fix Lightweight Directory Access Protocol denial-of-service and remote code execution flaws. Researchers have released a proof-of-concept exploit for the latter flaw.

A proof-of-concept (PoC) exploit has been released for a now-patched security flaw impacting Windows Lightweight Directory Access Protocol (LDAP) that could trigger a denial-of-service (DoS) condition

Plus, a POC to make it extra easy for attackers A Microsoft SharePoint bug that can allow an attacker to remotely inject code into vulnerable versions is under active exploitation, according to the US Cybersecurity and Infrastructure Security Agency (CISA).…

If you haven't deployed August's patches, get busy before others do Windows users who haven't yet installed the latest fixes to their operating systems will need to get a move on, as code now exists to exploit a critical Microsoft vulnerability announced by Redmond two weeks ago.…

Researchers have released a proof-of-concept (PoC) exploit for an actively exploited Windows local privilege escalation vulnerability fixed as part of the May 2023 Patch Tuesday. [...]

Details have emerged about a now-patched actively exploited security flaw in Microsoft Windows that could be abused by a threat actor to gain elevated privileges on affected systems

A proof-of-concept (PoC) has been made available for a security flaw impacting the KeePass password manager that could be exploited to recover a victim's master password in cleartext under specific circumstances

Proof-of-concept (Poc) code has been released for a now-patched high-severity security flaw in the Windows CryptoAPI that the U.S. National Security Agency (NSA) and the U.K. National Cyber Security Centre (NCSC) reported to Microsoft last year

Plus there's a PoC exploit for this unpatched Cisco bug For its final Patch Tuesday of the year, Microsoft fixed one bug that's already been exploited and another that's publicly known, bringing its total patched to 49 vulnerabilities, six of which are rated critical.…