CVE-2024-20653: Microsoft Common Log File System Elevation of Privilege Vulnerability

Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

Microsoft Common Log File System Elevation of Privilege Vulnerability

What

Microsoft Common Log File System Elevation of Privilege Vulnerability

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

Microsoft Common Log File System Elevation of Privilege Vulnerability

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → Out-of-bounds Read → gain additional privileges
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-125 ↗
CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

Privilege escalationCWE-125

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2024-18368Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2024-0036Microsoft Windows und Microsoft Windows Server: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows und Microsoft Windows Server ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, seine Berechtigungen zu erweitern und Informationen falsch darzustellen.

Official advisory ↗

Cyber Security Agency of Singapore · English · CSA-SB-20240110Security Bulletin 10 Jan 2024

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 10 Jan 2024, published on 10 January 2024. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗

CERT-FR · French · CERTFR-2024-AVI-0021Multiples vulnérabilités dans Microsoft Windows

la confidentialité des données, une exécution de code arbitraire à distance, un déni de service et une élévation de privilèges. Solution Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation). Documentation Bulletin de sécurité Microsoft du 09 janvier 2024 https://msrc.microsoft.com/update-guide/ Bulletin de sécurité Microsoft CVE-2022-35737 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-35737 Bulletin de sécurité Microsoft CVE-2024-20652 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20652 Bulletin de sécurité Microsoft CVE-2024-20653 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20653 Bulletin de sécurité Microsoft CVE-2024-20654 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20654 Bulletin de sécurité Microsoft CVE-2024-20655 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20655 Bulletin de sécurité Microsoft CVE-2024-20657 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20657 Bulletin de sécurité Microsoft CVE-2024-20658 du 09 janvier 2024 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20658 Bulletin de sécurité Micr

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2024-001060マイクロソフトの複数の Microsoft Windows 製品における権限を昇格される脆弱性

マイクロソフトの Microsoft Windows 10、Windows 11、Windows Server には、Microsoft Common Log File System に不備があるため、権限を昇格される脆弱性が存在します。

Official advisory ↗

KISA KrCERT/CC · Korean · KNVD-6068MS 1월 보안 위협에 따른 정기 보안 업데이트 권고

Official advisory ↗

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: Windows Server 2022, 23H2 Edition (Server Core installation): 10.0.25398.0 < 10.0.25398.643
Windows 11 Version 23H2: 10.0.22631.0 < 10.0.22631.3007
Windows 11 version 22H3: 10.0.22631.0 < 10.0.22631.3007
Windows 10 Version 1809: 10.0.17763.0 < 10.0.17763.5329, 10.0.0 < 10.0.17763.5329
Windows Server 2019: 10.0.17763.0 < 10.0.17763.5329
Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.5329
Windows Server 2022: 10.0.20348.0 < 10.0.20348.2227
Windows 11 version 21H2: 10.0.0 < 10.0.22000.2713
Windows 10 Version 21H2: 10.0.19043.0 < 10.0.19044.3930
Windows 11 version 22H2: 10.0.22621.0 < 10.0.22621.3007
Windows 10 Version 22H2: 10.0.19045.0 < 10.0.19045.3930
Windows 10 Version 1507: 10.0.10240.0 < 10.0.10240.20402
Windows 10 Version 1607: 10.0.14393.0 < 10.0.14393.6614
Windows Server 2016: 10.0.14393.0 < 10.0.14393.6614
Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.6614
Windows Server 2008 Service Pack 2: 6.0.6003.0 < 6.0.6003.22464
Windows Server 2008 Service Pack 2 (Server Core installation): 6.0.6003.0 < 6.0.6003.22464
Windows Server 2008 Service Pack 2: 6.0.6003.0 < 6.0.6003.22464
Windows Server 2008 R2 Service Pack 1: 6.1.7601.0 < 6.1.7601.26910
Windows Server 2008 R2 Service Pack 1 (Server Core installation): 6.1.7601.0 < 6.1.7601.26910
Windows Server 2012: 6.2.9200.0 < 6.2.9200.24664
Windows Server 2012 (Server Core installation): 6.2.9200.0 < 6.2.9200.24664
Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.21765
Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.21765
Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 9 Jan 2024 · Last source change 3 May 2025, 01:46 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.1

CVSS sourceCNA

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2024-18368

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceOther authority

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2024-01-09CVE published

2025-05-03Fixed release or patch reference recorded

ENISA EUVD · EUVD-2024-18368↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

Microsoft Common Log File System Elevation of Privilege Vulnerability

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2024-18368

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication

Microsoft Common Log File System Elevation of Privilege Vulnerability

National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

EUVD-2024-18368

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.