CVE-2026-83844

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Out-of-Bounds Read in Windows Paint

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows Paint allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-13

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-83844

EUVD

EUVD-2026-99382

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Microsoft	Paint 11.0.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read flaw in Windows Paint. It allows an unauthorized attacker to execute arbitrary code remotely over a network without needing prior access to the system.

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. It requires no user interaction and can be triggered remotely.

Compliance Impact

This vulnerability allows remote code execution via an out-of-bounds read in Windows Paint, which could lead to unauthorized access to sensitive data. Such access may violate GDPR's data protection requirements or HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the out-of-bounds read vulnerability in Windows Paint. Monitor Microsoft's security advisories for patches and install them promptly.

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