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CVE-2026-25190: High Vulnerability in Microsoft Windows GDI

A high-severity vulnerability in Microsoft Windows GDI allows unauthorized code execution locally. Organizations must prioritize patching to mitigate this risk.

HIGHCVSS 7.8 · Published March 10, 2026

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CVE-2026-25190 is a high-severity vulnerability affecting Microsoft Windows GDI, characterized by an untrusted search path that enables unauthorized attackers to execute code locally. The CVSS score of 7.8 indicates a significant risk, particularly for organizations utilizing affected Windows versions. The vulnerability's local attack vector requires user interaction, making it critical for organizations to assess their exposure and implement necessary mitigations.

Risk to organizations includes potential unauthorized access and control over affected systems, which could lead to further exploitation. As the vulnerability has been analyzed and disclosed, organizations should prioritize patching immediately to safeguard their systems against potential threats.

Currently, there are no known exploits or public proof-of-concept (PoC) available, but the exploitation vector remains concerning. Organizations must remain vigilant, ensuring that all systems are updated to the latest versions to mitigate exposure.

Given the urgency of this vulnerability, organizations are urged to address this issue in their priority patch cycle, especially for systems that fall within the affected product ranges.

Vulnerability Details

The vulnerability description states that the untrusted search path in Windows GDI allows unauthorized attackers to execute code locally. This vulnerability has a CVSS score of 7.8, categorized as high severity, indicating that it poses a serious risk to affected users. It impacts several versions of Windows, including Windows 10 (versions 1607, 1809, 21H2, 22H2), Windows 11 (versions 23H2, 24H2, 25H2, 26H1), and various Windows Server editions.

The vulnerability was published on March 10, 2026, and is classified under CWE-426. Organizations should be aware of the high impact on confidentiality, integrity, and availability, as indicated by the vulnerability's characteristics.

Technical Analysis

The root cause of CVE-2026-25190 stems from an untrusted search path, which allows attackers to manipulate the execution of code in the Windows GDI. The attack vector is local, requiring the attacker to have physical or remote access to the system, and the attack complexity is rated as low. No privileges are required to exploit this vulnerability, but user interaction is necessary.

The vulnerability impacts confidentiality, integrity, and availability, with each aspect rated as high, indicating the potential for significant damage if exploited. Organizations must understand that the impact is not only on the affected systems but also on the overall security posture.

Risk & Impact Analysis

Real-world deployment risk for this vulnerability is high due to the local attack vector and user interaction requirement, which may lead to unauthorized access. Organizations utilizing affected Windows products must prioritize remediation as the vulnerability can be exploited by attackers who gain access to systems, potentially leading to a broader compromise.

The urgency for addressing this vulnerability is high, given its CVSS score and the potential for exploitation. Organizations are encouraged to assess their exposure and act swiftly to patch affected systems to mitigate risk.

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The following versions of Microsoft Windows are affected by this vulnerability: Windows 10 (1607, 1809, 21H2, 22H2), Windows 11 (23H2, 24H2, 25H2, 26H1), and various Windows Server editions (2012, 2016, 2019, 2022, 2025). All versions prior to vendor patch are vulnerable.

Mitigation & Remediation

Organizations should prioritize patching to remediate this vulnerability. To mitigate risk, ensure that all affected systems are updated to the latest versions. If a patch is unavailable, consider implementing configuration hardening and network controls to reduce exposure. For further guidance, organizations can refer to penetration testing methodology to identify potential weaknesses.

Detection Guidance

Monitor logs for indicators of unauthorized access attempts, and watch for behavioral anomalies that could indicate exploitation. Implement network signatures to detect abnormal activity that may be associated with this vulnerability.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2026-25190 highlights the importance of maintaining secure coding practices and robust configuration management. Security teams must learn from this vulnerability, ensuring regular updates and thorough testing of their systems against vulnerabilities. For comprehensive security assessments, organizations can explore our offerings on application security assessment and continuous penetration testing services.

This vulnerability serves as a reminder of the evolving threat landscape and the necessity for organizations to remain proactive in their security measures.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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