Microsoft releases a security update to patch PrintNightmare on various versions of Windows (including Windows 7)

Do you have got a brand new safety replace ready in your Home windows Replace: Microsoft simply launched an emergency safety replace for repair the zero-day PrintNightmare vulnerability, which we instructed you about final week.

PrintNightmare permite exploit the Home windows Print Queue service to execute arbitrary code that allows the attacker to put in or uninstall packages, manipulate or delete recordsdata or create new person accounts, amongst different assaults.


What makes this specific vulnerability related lies in two details:

  1. What’s current in all variations of Home windows

  2. What is being actively exploited, after a proof of idea that ended up on GitHub was mistakenly posted.

Given the seriousness of the issue, Microsoft has launched patches for a number of variations of Home windows, together with some whose assist part has already ended … though has left others nonetheless unpatchedr.

Thus, though Home windows 7 (no assist since January 2020) is among the many beneficiaries for the patch, Different variations reminiscent of Home windows 10 model 1607, Home windows Server 2016 or Home windows Server 2012 (in paid prolonged assist) stay weak a PrintNightmare.

And what’s worse: the patch is simply partial, as a result of though it corrects the potential for struggling a distant assault, the vulnerability remains to be energetic in case the attacker has bodily entry to the system, as safety researcher Matthew Hickey has revealed:

What replace corresponds to every model of Home windows?

The replace KB5004945 this focusing on the three most up-to-date variations of Home windows 10: 2004, 20H2 and 21H1, all based mostly on the identical codebase.

All different variations of Home windows might want to set up different replace packages:

Since this can be a safety replace geared toward correcting a important vulnerability, will probably be downloaded routinely through Home windows Replace; though we even have the choice of downloading it by hand from the Updates Catalog. The subsequent patches Home windows 10, like Patch Tuesday popping out subsequent week, may also embody this correction.

Through | Bleeping Computer

Picture | Primarily based on Microsoft unique + Christian Colen

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