CVE-2023-35364

SYSTEM privilege escalation via kernel integer overflow

Published Jul 11, 2023 · Updated Jan 1, 2025

Integer overflow in the Microsoft Windows kernel allows local users with low privileges to elevate access to SYSTEM. Microsoft has not disclosed the affected kernel routine, the untrusted value involved, or the arithmetic operation that overflows. Exploitation requires local low-privileged access and grants full control beyond the initiating account's security boundary.

CVSS severity8.8
High
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the Microsoft Windows kernel allows local users with low privileges to elevate access to SYSTEM. Microsoft has not disclosed the affected kernel routine, the untrusted value involved, or the arithmetic operation that overflows. Exploitation requires local low-privileged access and grants full control beyond the initiating account's security boundary.

The record

CVE
CVE-2023-35364
Published
Jul 11, 2023
Updated
Jan 1, 2025
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-190, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.17763.0 <10.0.17763.4645

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.4645
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.2176
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.3208
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.3208
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.4645
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.1992
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.1850
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.4645; version=10.0.17763.0 <10.0.17763.4645

Published CVSS scores

8.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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