Security Feature Bypass in Microsoft Word

1) Input validation error

EUVDB-ID: #VU100411

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-49033

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient validation of user-supplied input in Microsoft Word. A remote attacker can pass specially crafted input to the application and bypass specific functionality of the Office Protected View.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2019

Microsoft Word: 2016

Microsoft Office LTSC: 2021 for Mac - 2024

Microsoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems

CPE2.3

• cpe:2.3:a:microsoft:microsoft_office:*:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_word:*:*:*:*:*:microsoft_office:*:*
• cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:for Mac:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_office_ltsc:2021:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_office_ltsc:2024:for Mac:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_365_apps_for_enterprise:32-bit Systems:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_365_apps_for_enterprise:64-bit Systems:*:*:*:*:*:*:*

External links

http://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49033

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.