CVE-2017-8570
Published 2017-07-11 · Updated 2026-06-17 · Source secure@microsoft.com
Summary
CVE-2017-8570 is a high-severity (CVSS 7.8) vulnerability in Microsoft Office. CISA added it to the Known Exploited Vulnerabilities catalog on February 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by August 25, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.
All 390 known-exploited Microsoft vulnerabilities →Description
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0243.
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Microsoft — Office
Name: Microsoft Office Remote Code Execution Vulnerability
Date added: 2022-02-25 · Due: 2022-08-25
Required action: Apply updates per vendor instructions.
References
- http://www.securityfocus.com/bid/99445
- https://github.com/ParsingTeam/ppsx-file-generator
- https://github.com/rxwx/CVE-2017-8570
- https://github.com/tezukanice/Office8570
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
- http://www.securityfocus.com/bid/99445
- https://github.com/ParsingTeam/ppsx-file-generator
- https://github.com/rxwx/CVE-2017-8570