CVE-2026-70147

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Heap-based Buffer Overflow in Microsoft PostScript Printer Driver

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-70147

EUVD

EUVD-2026-99686

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Windows	10 Version 1607 10.0.14393.0
Microsoft	Windows	10 Version 1809 10.0.17763.0
Microsoft	Windows	10 Version 21H2 10.0.19044.0
Microsoft	Windows	10 Version 22H2 10.0.19045.0
Microsoft	Windows	11 version 23H2 10.0.22631.0
Microsoft	Windows	11 Version 23H2 10.0.22631.0
Microsoft	Windows	11 Version 24H2 10.0.26100.0
Microsoft	Windows	11 Version 25H2 10.0.26200.0
Microsoft	Windows	11 version 26H1 10.0.28000.0
Microsoft	Windows	11 Version 26H2 10.0.26300.0
Microsoft	Windows	Server 2012 6.2.9200.0
Microsoft	Windows	Server 2012 (Server Core installation) 6.2.9200.0
Microsoft	Windows	Server 2012 R2 6.3.9600.0
Microsoft	Windows	Server 2012 R2 (Server Core installation) 6.3.9600.0
Microsoft	Windows	Server 2016 10.0.14393.0
Microsoft	Windows	Server 2016 (Server Core installation) 10.0.14393.0
Microsoft	Windows	Server 2019 10.0.17763.0
Microsoft	Windows	Server 2019 (Server Core installation) 10.0.17763.0
Microsoft	Windows	Server 2022 10.0.20348.0
Microsoft	Windows	Server 2025 10.0.26100.0
Microsoft	Windows	Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

Executive Summary

This is a heap-based buffer overflow vulnerability in Microsoft's PostScript Printer Driver. It allows an unauthorized attacker to execute arbitrary code remotely over a network without needing user interaction or elevated privileges.

Detection Guidance

This vulnerability involves a heap-based buffer overflow in the Microsoft PostScript Printer Driver. Detection typically requires checking for unusual network traffic patterns or printer driver behavior. Use network monitoring tools like Wireshark to inspect PostScript-related traffic for anomalies. Check system logs for crashes or errors in the printer spooler service. Ensure your printer drivers are updated to the latest versions.

Impact Analysis

An attacker could exploit this to run malicious code on your system, potentially stealing data, installing malware, or taking control of your device. Since it affects the PostScript Printer Driver, any system using this driver is at risk.

Compliance Impact

This vulnerability allows unauthorized remote code execution via a heap-based buffer overflow in the PostScript Printer Driver. Such attacks could lead to unauthorized data access, modification, or exfiltration, which may violate GDPR data protection requirements and HIPAA security rules for protected health information.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the PostScript Printer Driver vulnerability. Monitor network traffic for unusual activity and disable the PostScript Printer Driver if not required.

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