CVE-2023-35311

HIGH KEV

Microsoft 365 Apps and Outlook - Security Feature Bypass via TOCTOU Race Condition

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2023-35311 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added July 11, 2023.

Description

Microsoft Outlook Security Feature Bypass Vulnerability

References (2)

Core 2

Scores

CVSS v3 8.8
EPSS 0.0047
EPSS Percentile 65.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact total

Details

CISA KEV 2023-07-11
VulnCheck KEV 2023-07-11
InTheWild.io 2023-07-11
ENISA EUVD EUVD-2023-39314
CWE
CWE-367
Status published
Products (5)
microsoft/365_apps
microsoft/office 2019
microsoft/office_long_term_servicing_channel 2021
microsoft/outlook 2013 (2 CPE variants)
microsoft/outlook 2016
Published Jul 11, 2023
KEV Added Jul 11, 2023
Tracked Since Feb 18, 2026