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CVE-2021-34527: Microsoft Releases Out-of-Band Patch for PrintNightmare Vulnerability in Windows Print Spooler

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On July 6, Microsoft updated its advisory to announce the availability of out-of-band patches for a critical vulnerability in its Windows Print Spooler that researchers are calling PrintNightmare. This remote code execution (RCE) vulnerability affects all versions of Microsoft Windows. Description. CVE-2021-34527.

Windows 101
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SMBleed (CVE-2020-1206) and SMBLost (CVE-2020-1301) Vulnerabilities Affect Microsoft SMBv3 and SMBv1

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The first version of the SMB protocol (SMBv1) was developed at IBM by Barry Feigenbaum in 1983 and it was eventually implemented in Microsoft Windows in 1992. However, after reviewing all the changes, they decided that marking this release as a minor revision “doesn’t do justice [sic] the work that has gone in.”