CVE Vulnerabilities

CVE-2023-35311

Time-of-check Time-of-use (TOCTOU) Race Condition

Published: Jul 11, 2023 | Modified: Oct 28, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu
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Microsoft Outlook Security Feature Bypass Vulnerability

Weakness

The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check.

Affected Software

NameVendorStart VersionEnd Version
365_appsMicrosoft- (including)- (including)
OfficeMicrosoft2019 (including)2019 (including)
Office_long_term_servicing_channelMicrosoft2021 (including)2021 (including)
OutlookMicrosoft2013 (including)2013 (including)
OutlookMicrosoft2013-sp1 (including)2013-sp1 (including)
OutlookMicrosoft2016 (including)2016 (including)

Potential Mitigations

References