Patch Analysis for February 2021

Welcome to this February Patch Monday Bulletin. This month there are patches from Adobe, Apple, Google, and Mozilla. Adobe Acrobat/Reader and Google Chrome both updated actively exploited vulnerabilities and should be top priority this month. CVE-2021-21017 is an arbitrary code execution vulnerability that has been observed exploiting Adobe Acrobat/Reader. This is the first Critical Priority 1 vulnerability in recent months and should be the top priority this month. CVE-2021-21148 is a heap buffer overflow in google chrome that has exploits reported in the wild. Adobe rated the Magento update as a Critical Priority 2 update and should be the next priority due to Magento being a popular target for attackers. Follow up with updates to Mozilla Firefox since it has been a popular target in the past. Review the environment for the presence of iCloud, Thunderbird, and the remaining Adobe products and assess whether patches should be applied.

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So, without further ado, here’s the chart of non-MS patches this month.

Patch data provided by:



Product Version Affected

Date Released by Vendor

Vulnerability Info

Severity / Our Recommendation


Adobe Dreamweaver

20.2, 21.0


Information Disclosure

Important Priority 3: Update at admin’s discretion

Multiple CVE’s

Adobe Illustrator

25.1 and earlier


Arbitrary Code Execution

Critical Priority 3: Update at admin’s discretion


Adobe Animate

21.0.2 and earlier


Arbitrary Code Execution

Critical Priority 3: Update at admin’s discretion

Multiple CVE’s

Adobe Photoshop

21.2.4 and earlier

22.1.1 and earlier


Arbitrary Code Execution

Critical Priority 3: Update at admin’s discretion

Multiple CVE’s


Commerce/ Open Source

2.4.1 and earlier

2.4.0 and earlier

2.3.6 and earlier


Arbitrary Code Execution, Unauthorized Access

Critical Priority 2: Update within 30 days

Multiple CVE’s

Adobe Acrobat/Reader

Continuous 2020.013.20074 and earlier

Classic 2020 2020.001.30018 and earlier

Classic 2017 2017.011.30188 and earlier


Denial of Service, Arbitrary Code Execution, Privilege Escalation, Information Disclosure

Critical Priority 1: Update within 72 hours

Multiple CVE’s

Apple iCloud for Windows

Before 12.0


Arbitrary Code Execution

Update after testing

Multiple CVE’s

Google Chrome

Windows before 88.0.4324.190

Mac before 88.0.4324.192

Linux before 88.0.4324.182


Use After Free, Heap Overflow, Stack Overflow

Update after testing

Multiple CVE’s

Mozilla Firefox

Before 85.0.1/ESR 78.7.1


Information Disclosure, Denial of Service

Update after testing

Multiple CVE’s

Mozilla Thunderbird

Before 78.7


Information Disclosure, Denial of Service

Update after testing

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