CVE-2017-11882

CVE-2017-11882 is a high-severity (CVSS 7.8) vulnerability in Microsoft Office. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

Microsoft Office 2007 Service Pack 3, Microsoft Office 2010 Service Pack 2, Microsoft Office 2013 Service Pack 1, and Microsoft Office 2016 allow an attacker to run arbitrary code in the context of the current user by failing to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11884.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

• http://reversingminds-blog.logdown.com/posts/3907313-fileless-attack-in-word-without-macros-cve-2017-11882
• http://www.securityfocus.com/bid/101757
• http://www.securitytracker.com/id/1039783
• https://0patch.blogspot.com/2017/11/did-microsoft-just-manually-patch-their.html
• https://0patch.blogspot.com/2017/11/official-patch-for-cve-2017-11882-meets.html
• https://github.com/0x09AL/CVE-2017-11882-metasploit
• https://github.com/embedi/CVE-2017-11882
• https://github.com/rxwx/CVE-2017-11882