Mac Os High Sierra Security Update Download

6 min readNov 2, 2021

Security Updates for macOS 10.14 & 10.13 are now Available.

Free Download Mac Os Sierra
Mac Os High Sierra Security Update Download 32-bit
MacOS High Sierra DMG OverView: Many Mac users that are trying to download macOS High Sierra from the Mac App Store will find that the small version of 19 MB of “Instead of the whole 5.2 GB installer for macOS High Sierra.app” has a download on the /Application folder of the target Mac.
Oct 07, 2019 Download macOS High Sierra. For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system. If you still need macOS High Sierra, use this App Store link: Get macOS High Sierra. Begin installation.

Today, Apple released macOS Mojave Security Update 2020–002 and High Sierra Security Update 2020–002. Below you will find Build Versions, Download Links, Update Sizes and previous Security Update Links. MacOS Sierra is no longer supported by Apple for Security Updates.

How do I keep track of all the macOS Build Versions?

I document all of the macOS Build Versions like the latest Mojave 2020–002 High Sierra 2020–002 along with most Apple Applications, XProtect, Gatekeeper and MRT updates in one database. You can check out the link below.

MacOS Mojave Security Update 2020–002 (18G4032)

macOS Mojave Security Update 2020–002
Size = 1.62gb
Package Download and Information Link

Download macOS High Sierra for Mac & read reviews. High Sierra is an update of MacOS which focuses mostly on back-end developments and a higher level of user security. As such, this operating system lays a foundation for future upgrades. Mac search engine, there are some notable improvements with the update. The users can now control.

Information on the Security fixes included in the 2020–002 Mojave Security Update

MacOS High Sierra Security Update 2020–002 (17G12034)

10.13.6 High Sierra Security Update 2020–002
Size = 2.1gb
Package Download and Information Link

Information on the Security fixes included in the 2020–002 High Sierra Security Update

Safari Update

Safari was updated to version 13.1

Download Size for High Sierra = 66.2mb

Downloads Size for Mojave = 70.5mb

T2 BridgeOS Update

Both the 2020–002 and 2020–002 Security Updates upgrade BridgeOS to version — 17.16.14263

Security Content for Safari 13.1

Previous Releases

1. MacOS Security Updates released 01/28/20 — Mojave 2020–001 (18G3020) & High Sierra 2020–001 (17G11023)
2. MacOS Security Updates released 12/10/19 — Mojave 2019–002 (18G2022) & High Sierra 2019–007 (17G10021)
3.Security Updates released 10/31/19 — Mojave 2019–001 (18G1012) & HS 2019–006 (17G9016)
4. macOS updates released 9/26/19–10.14.6 Mojave #3 (18G103) — 10.13 & 10.12 (2019–005)
5. macOS updates released 7/22/19–10.14.6 Mojave (18G84)- 10.13 & 10.12 2019–004)
6. macOS updates released 5/13/19–10.14.5 Mojave (18F132) — 10.13. & 10.12 (2019–003)
7. macOS updates released 3/25/19–10.14.4 Mojave (18E226) — 10.13 & 10.12 (2019–002)

Security Related Content for 2020–002

Security Update 2020–002 Mojave, Security Update 2020–002 High Sierra

Released March 24, 2020

AppleGraphicsControl

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3

Impact: A malicious application may be able to execute arbitrary code with kernel privileges

Description: Multiple memory corruption issues were addressed with improved state management.

CVE-2020–3904: Proteas of Qihoo 360 Nirvan Team

Bluetooth

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3

Impact: A local user may be able to cause unexpected system termination or read kernel memory

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2020–3907: Yu Wang of Didi Research America

CVE-2020–3908: Yu Wang of Didi Research America

CVE-2020–3912: Yu Wang of Didi Research America

Bluetooth

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3

Impact: A malicious application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed with improved input validation.

CVE-2020–3892: Yu Wang of Didi Research America

CVE-2020–3893: Yu Wang of Didi Research America

CVE-2020–3905: Yu Wang of Didi Research America

Bluetooth

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6

Impact: An application may be able to read restricted memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2019–8853: Jianjun Dai of Qihoo 360 Alpha Lab

IOHIDFamily

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3

Impact: A malicious application may be able to execute arbitrary code with kernel privileges

Description: A memory initialization issue was addressed with improved memory handling.

CVE-2020–3919: an anonymous researcher

IOThunderboltFamily

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6

Impact: An application may be able to gain elevated privileges

Description: A use after free issue was addressed with improved memory management.

CVE-2020–3851: Xiaolong Bai and Min (Spark) Zheng of Alibaba Inc. and Luyi Xing of Indiana University Bloomington

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3

Impact: An application may be able to read restricted memory

Description: A memory initialization issue was addressed with improved memory handling.

CVE-2020–3914: pattern-f (@pattern_F_) of WaCai

libxml2

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3

Impact: Multiple issues in libxml2

Description: A buffer overflow was addressed with improved bounds checking.

CVE-2020–3909: LGTM.com

CVE-2020–3911: found by OSS-Fuzz

libxml2

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3

Impact: Multiple issues in libxml2

Description: A buffer overflow was addressed with improved size validation.

CVE-2020–3910: LGTM.com

Mail

Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15.3

Impact: A remote attacker may be able to cause arbitrary javascript code execution

Description: An injection issue was addressed with improved validation.

CVE-2020–3884: Apple

TCC

Available for: macOS Mojave 10.14.6, macOS Catalina 10.15.3

Impact: A maliciously crafted application may be able to bypass code signing enforcement

Description: A logic issue was addressed with improved restrictions.

CVE-2020–3906: Patrick Wardle of Jamf

Mojave 2020–002 High Sierra 2020–002

High Sierra is an update of MacOS which focuses mostly on back-end developments and a higher level of user security. As such, this operating system lays a foundation for future upgrades.

Stay safe

In essence, High Sierra took what was good with Sierra and developed it into a more comprehensive software.

High Sierra emphasizes the already-existing benefits of MacOS previous system, Sierra. There are few bells and whistles, but the changes are noticeable and positive. The Apple file system is the most significant feature it brought. It enables the storage and encryption of a large number of files. Thus, it boosts performance and helps manage device memory issues.

Apple also introduced new formats for video and photos in this version. These formats compress data — that’s a benefit as files can get huge with ever-rising resolutions. They added support for virtual reality headsets as well.

Besides that, when it comes to Safari, Mac search engine, there are some notable improvements with the update. The users can now control annoying auto-play videos, prevent tracking, and more. There are also notification controls, and you will experience a boost in performance, too.

The most noticeable changes took place in Apple’s Photo App, though. It went through a total revamp both visually in its interface and terms of tools and functions available. Many other discreet changes happened all over the system.

Where can you run this program?

If you’re running Sierra on your Mac, you will be able to run this one as well.

Is there a better alternative?

Yes. Mojave, the newest version of MacOS, brought even more improved features to the table. However, if you can’t run it on your device, this is the second best.

Our take

High Sierra is not the shiniest upgrade Apple brought, but it’s one that sets the stage for new upgrades to come. Even out of that context, it’s a great operating system.

Should you download it?

Free Download Mac Os Sierra

Yes, if your device can support it. The new options and better security settings are worth getting.