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Microsoft CVE-2020-16920: Windows Application Compatibility Client Library Elevation of Privilege Vulnerability

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Microsoft CVE-2020-16920: Windows Application Compatibility Client Library Elevation of Privilege Vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
10/13/2020
Created
10/14/2020
Added
10/13/2020
Modified
11/18/2021

Description

An elevation of privilege vulnerability exists when the Windows Application Compatibility Client Library improperly handles registry operations. An attacker who successfully exploited this vulnerability could gain elevated privileges. To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application. The security update addresses the vulnerability by ensuring the Windows Application Compatibility Client Library properly handles registry operations.

Solution(s)

  • msft-kb4577668-79a95e38-d1bc-434b-8a49-eb0e05941333
  • msft-kb4577668-965a8ede-1eb7-46d6-83a6-7246ea98aae0
  • msft-kb4577668-b815915f-3e4f-46ae-adc9-b90cd4b04100
  • msft-kb4577671-4bc3ccc3-fcb0-4bbd-a2a5-cbbd40369d41
  • msft-kb4577671-60a68333-26ce-47b6-9254-89d69caedfdf
  • msft-kb4577671-a4f7dcc3-65f1-4a75-8635-ea596100c299
  • msft-kb4577671-c4223a46-1f35-41d8-ac8e-d2772d017f90
  • msft-kb4577671-c42dc613-fb5b-4c45-925c-4f508584a635
  • msft-kb4577671-ddbf4c81-6ca7-4986-999e-9275ef508017
  • msft-kb4579311-d5cbc800-cb34-49c3-bde8-aa2f0ee05b2e
  • msft-kb4579311-e9f0550d-b150-4eeb-bf5e-1a08b117e7af
  • msft-kb4579311-fa30a6bc-24ef-47b0-a6fa-d7971053e058
  • msft-kb4580327-b12a0c5e-6811-4f83-aa52-963c9a1b7122
  • msft-kb4580327-b4113e8c-1aae-4018-b2a1-765dd1bcd9d2
  • msft-kb4580328-ebb00bd7-bff6-4567-8b7c-300728513137
  • msft-kb4580328-f01aa891-eec2-4390-9974-dc226f4d6bf4
  • msft-kb4580330-c2c988c8-cbbe-4a10-a26f-365b656443f3
  • msft-kb4580330-fc2b1c51-dad6-4170-ba4d-85c43ed047d1
  • msft-kb4580346-9b324858-4775-435e-b63f-a21d81976473
  • msft-kb4580346-a33fefeb-b078-4cde-b9b9-f3473007bef2
  • msft-kb4580346-d0112564-f9f1-4bc0-a077-6510a9918638
  • msft-kb4580353-3e254f1d-7bf3-4f94-8817-a6eb0accedc0
  • msft-kb4580353-44fd2306-a708-4f52-ab50-b4cad9d98954
  • msft-kb4580353-59e7e42c-6434-4e0a-bd9f-b504d629f516
  • msft-kb4580358-12cf7c4b-339c-47dc-a087-73a7a0dedf6f
  • msft-kb4580358-ecb5ba66-abc4-450c-b228-5e6640687217
  • msft-kb4580358-ef30fd6b-8580-4ec5-9190-5cdb4b02f438
  • msft-kb4580387-08d6fc97-597d-4b5b-8422-f4b57817b1c1
  • msft-kb4580387-1473a3e5-0aa3-43a1-b213-cf3151e2c15e
  • msft-kb4580387-5cef288f-a4e4-4cb7-86e0-ef3c89b43ced
  • msft-kb4580387-e92e01a4-761c-41f6-a9f6-5853bb7885c9
  • msft-kb4580387-fc890b9e-e1d1-43af-b7f8-d42201cd24aa

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