Key Windows Tools Vulnerable to Hackers, Researcher Disappears

There's a serious vulnerability in the Windows Task Scheduler, according to Twitter user SandboxEscaper (via The Register). Specifically, it resides in the Advanced Local Procedure Call (ALPC) interface, a Windows mechanism that helps a client process communicate with a server process.

The vulnerability could allow hackers to gain administrative access on a Windows system.

According to the mysterious researcher, who deleted his or her Twitter account soon after disclosing the vulnerability and declaring "I don't [expletive] care about life anymore," the flaw is known as an elevation-of-privilege bug.

This means that if you download and run a malicious piece of software, it can gain access to privileges it shouldn't have, such as those assigned to system administrators.

CERT Coordination Center analyst Will Dormann confirmed that the vulnerability exists in a fully-patched Windows 10 system. He is "currently unaware of any workarounds."

MORE: Best Free Windows Antivirus Software

A Microsoft spokesperson told The Register that the company will "proactively update impacted devices as soon as possible." The next scheduled Microsoft round of patches comes out on Sept. 11, so we will likely have to wait until  then.

This isn't the first time researchers have uncovered such a vulnerability in Windows systems. Just a few weeks ago, a group of Israeli security experts at the Black Hat security conference revealed an elevation-of-privilege vulnerability resulting from Cortana's data retrieval process. Recent updates patched this flaw.

And in June, the company released an update to Windows 365 to patch a similar bug in Microsoft Outlook.

While unpatched vulnerabilities can be scary, remember that no one has actually exploited this flaw yet. But be sure to download the newest patch when it's released ASAP.

Image credit: Magsi/Shutterstock

Windows 10 Security and Networking

Latest in Windows Laptops
Error when installing Google Chrome on the Asus Vivobook 16 Flip, on a white desk against a blue background.
"This app can't run on your PC": Google's Chrome Installer broke on Windows, but there's a fix
Microsoft Copilot physical key on Windows keyboards
Microsoft "fixes" Windows update bug that some users considered a feature
The HP ZBook Fury 18 G1i open against a gradient purple background.
I'm a veteran laptop tester, and the new HP ZBook Fury is so powerful I'm shocked
Asus Vivobook Pro 15 (N6506, 2025) open at an angle on a white table.
Asus Vivobook Pro 15 (N6506, 2025) review: Asus dials in its MacBook Pro competitor
Windows Logo
Windows users call Microsoft's latest update blunder "The greatest bug in living memory" — here's why
A keyboard with a button that says "SCAM?"
A years-long scam that began with fake Windows pop-ups ends with PayPal payments
Latest in News
A close-up of a light-colored computer keyboard shows the keys T, Y, G, and H replaced by the logos of OpenAI, DeepSeek, Grok, and Gemini, the leading competitors in the artificial intelligence market. This serves as a visual metaphor for the intense rivalry and innovation in the AI industry. (Photo by Matteo Della Torre/NurPhoto via Getty Images)
Is generative AI inadvertently reducing the voices of many to the banality of one?
WWDC 2025 could mark the beginning of the end for certain iPhone users
Error when installing Google Chrome on the Asus Vivobook 16 Flip, on a white desk against a blue background.
"This app can't run on your PC": Google's Chrome Installer broke on Windows, but there's a fix
Nintendo Switch 2 handheld gaming console
Nintendo Switch 2 preorder date: It might be a lot closer than you think, say tipsters
Microsoft Surface Laptop (7th Edition, 2024)
Windows-on-Arm woes: Amazon warns customers about Surface laptop returns
Apple Watch Series 8
Siri is the biggest obstacle to making the Apple Watch an AI hit