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Full vulnerability report · 2023
CVE-2023-24866High confidence

Microsoft PostScript and PCL6 Class Printer Driver Information Disclosure Vulnerability

Microsoft · Windows 10 Version 1809

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 1.53% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Windows 10 Version 1809 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-28856

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Microsoft PostScript and PCL6 Class Printer Driver Information Disclosure Vulnerability

What

Microsoft PostScript and PCL6 Class Printer Driver Information Disclosure Vulnerability

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

What

Microsoft PostScript and PCL6 Class Printer Driver Information Disclosure Vulnerability

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.

02

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
a network path → Improper Input Validation → obtain information outside the intended access boundary
Attack surface
Network
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-20 ↗

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.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.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkCWE-20
A

Official authority intelligence

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

BSI · German · WID-SEC-2023-0651Microsoft Windows und Microsoft Windows Server: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows und Microsoft Windows Server ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen und seine Privilegien zu erweitern.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20230315Security Bulletin 15 Mar 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 15 Mar 2023, published on 15 March 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0232Multiples vulnérabilités dans Microsoft Windows

023-24861 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24861 Bulletin de sécurité Microsoft CVE-2023-24862 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24862 Bulletin de sécurité Microsoft CVE-2023-24863 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24863 Bulletin de sécurité Microsoft CVE-2023-24864 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24864 Bulletin de sécurité Microsoft CVE-2023-24865 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24865 Bulletin de sécurité Microsoft CVE-2023-24866 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24866 Bulletin de sécurité Microsoft CVE-2023-24867 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24867 Bulletin de sécurité Microsoft CVE-2023-24868 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24868 Bulletin de sécurité Microsoft CVE-2023-24869 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24869 Bulletin de sécurité Microsoft CVE-2023-24870 du 14 mars 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24870 Bulletin de sécurité Microsoft CVE-2023-

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-001372複数の Microsoft Windows 製品における情報を公開される脆弱性

Microsoft Windows 10、Windows 11、Windows Server には、Microsoft PostScript および PCL6 クラスプリンタドライバに不備があるため、情報を公開される脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5884MS 3월 보안 위협에 따른 정기 보안 업데이트 권고

pt Printer Driver | CVE-2023-24872 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 원격 코드 실행 취약성 | | Windows Bluetooth Service | CVE-2023-24871 | Windows Bluetooth 서비스 원격 코드 실행 취약성 | | Microsoft PostScript Printer Driver | CVE-2023-24870 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 정보 공개 취약성 | | Windows Remote Procedure Call Runtime | CVE-2023-24869 | 원격 프로시저 호출 런타임 원격 코드 실행 취약성 | | Microsoft PostScript Printer Driver | CVE-2023-24868 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 원격 코드 실행 취약성 | | Microsoft PostScript Printer Driver | CVE-2023-24867 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 원격 코드 실행 취약성 | | Microsoft PostScript Printer Driver | CVE-2023-24866 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 정보 공개 취약성 | | Microsoft Printer Drivers | CVE-2023-24865 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 정보 공개 취약성 | | Microsoft PostScript Printer Driver | CVE-2023-24864 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 권한 상승 취약성 | | Microsoft PostScript Printer Driver | CVE-2023-24863 | Microsoft PostScript 및 PCL6 Class 프린터 드라이버 정보 공개 취약성 | | Windows Secure Channel | CVE-2023-24862 | Windows 보안 채널 서비스 거부 취약성 | | Windows Win32K | CVE-2023-24861 | Windows 그래픽 구성 요소 권한 상승 취약성 | | Windows Internet Key Exchange (IKE) Protocol | CVE-2023-24859 | Windows IKE(Internet Key Exchange) 확장 서비스 거부 취약성 | | Microsoft

Official advisory ↗
03

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
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. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 14 Mar 2023 · Last source change 28 Feb 2025, 20:03 UTC · CWE-20 · Improper Input Validation

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-2023-28856
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.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2023-28856↗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.
Free version - for non-commercial use only.CVE-2023-24866 · cve.blacktree.nl