Hackers Use Fresh Vulnerability in Windows Print Spooler in Real Attacks

The US Infrastructure and Cybersecurity Agency (CISA) warned that a vulnerability in the Windows Print Spooler component, patched by Microsoft in February 2022, is being actively exploited by hackers. The issue in question is tracked as CVE-2022-22718 (CVSS score of 7.8) and, according to Microsoft, affects all versions of Windows. At the same time, the… Continue reading Hackers Use Fresh Vulnerability in Windows Print Spooler in Real Attacks

New Issues Found with Windows Print Spooler

Last month, cybersecurity experts inadvertently unveiled a PoC exploit for a dangerous problem related to the Windows Print Spooler service, which is a universal interface between OS, applications and local or network printers, allowing application developers to submit print jobs. As a result, an emergency patch was released for the vulnerability, which was criticized by… Continue reading New Issues Found with Windows Print Spooler

The official patch for the PrintNightmare vulnerability was ineffective

Earlier this week, Microsoft released an emergency patch for a critical PrintNightmare bug recently discovered in Windows Print Spooler (spoolsv.exe), but it was ineffective. Microsoft assigned the bug ID CVE-2021-34527, and also confirmed that the problem allows arbitrary code to be executed remotely with SYSTEM privileges and allows an attacker to install programs, view, modify… Continue reading The official patch for the PrintNightmare vulnerability was ineffective

Microsoft releases unscheduled patch for PrintNightmare vulnerability

Microsoft has prepared an emergency patch for a critical PrintNightmare bug that was recently discovered in Windows Print Spooler (spoolsv.exe). The PrintNightmare issue caused much confusion, as Microsoft initially combined two vulnerabilities under one identifier (CVE-2021-1675). But the official patch released in June only fixed part of the problem, leaving a critical RCE bug unpatched.… Continue reading Microsoft releases unscheduled patch for PrintNightmare vulnerability

Unofficial patch published for PrintNightmare vulnerability

Last week I talked about a PoC exploit for the dangerous vulnerability CVE-2021-34527 in Windows Print Spooler (spoolsv.exe), which researchers named PrintNightmare, and now an unofficial patch for this problem has been published. When the exploit was published, the researchers found that the patch released in June did not completely fix the problem. Moreover, the… Continue reading Unofficial patch published for PrintNightmare vulnerability