PT-2021-5671 · Microsoft · Office

Nathan Shomber · Published 2021-12-14 · Updated 2026-05-19 · CVE-2021-43255

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Office (affected versions not specified)

Description The issue is related to errors in the representation of information by the user interface, allowing an attacker to conduct a spoofing attack. This can affect the system, potentially leading to security breaches.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

UI Misrepresentation of Critical Information

Weakness Enumeration

CWE-451

Related Identifiers

BDU:2022-00110

CVE-2021-43255

Affected Products

Office

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2021-43255 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43255 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43255 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43255 · Security Note
• https://osv.dev/vulnerability/CVE-2021-43255 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00110 · Security Note
• https://t.me/cveNotify/164085 · Telegram Post
• https://twitter.com/f1tym1/status/2056823279906672795 · Twitter Post