CVE & CISA-KEV Catalog

CVE-2023-35311

HIGHCISA KEVEPSS 96th pctl
8.8
CVSS v3
NVD

Description

Microsoft Outlook Security Feature Bypass Vulnerability

How to fix

Remediation Available
Microsoft Outlook 2013Microsoft
Install:KB5002432Microsoft
Microsoft Outlook 2013 RT Service Pack 1Microsoft
Install:KB5002432
Microsoft Outlook 2016Microsoft
Install:KB5002427Microsoft

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

15.52%probability of exploitation in 30 days
96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Outlook Security Feature Bypass Vulnerability

Microsoft Outlook contains a security feature bypass vulnerability that allows an attacker to bypass the Microsoft Outlook Security Notice prompt.

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Remediation due: 2023-08-01

References

Government Resource1

Related Vulnerabilities

Other CWE-367 (TOCTOU Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-36980High8.183%-Fix
CVE-2024-30088High7.068%KEV + RansomFix
CVE-2004-0594Medium5.155%-Fix
CVE-2024-50379Critical9.844%-Fix
CVE-2023-38146High8.839%-Fix
CVE-2024-0132Critical9.037%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-28.