# Microsoft Windows Shell vulnerabilities Source: https://junglewise.ai/threats/technologies/windows-shell Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/windows-shell.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 8 vulnerabilities in Microsoft Windows Shell: 1 in the last 7 days and 5 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-105506, was published on 10 November 2026. 2 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 1 - Last 30 days: 1 - Last 90 days: 5 - All time: 8 (1 critical, 1 exploited in the wild) ## About Microsoft Windows Shell Windows Shell is the command-line interface and system component for executing commands in Microsoft Windows. ## Latest Microsoft Windows Shell vulnerabilities - [CVE-2026-105506: Microsoft Windows Shell buffer over-read information disclosure](https://junglewise.ai/threats/cve-2026-105506-buffer-over-read-in-windows-shell-allows-an-authorized-attacker) (medium, CVSS 5, published 10 Nov 2026) - [CVE-2026-83906: Windows Shell authentication algorithm spoofing](https://junglewise.ai/threats/cve-2026-83906-incorrect-implementation-of-authentication-algorithm-in-windows) (medium, CVSS 6.5, published 13 Oct 2026) - [CVE-2026-83905: Windows Shell sensitive information disclosure](https://junglewise.ai/threats/cve-2026-83905-exposure-of-sensitive-system-information-to-an-unauthorized) (medium, CVSS 4.7, published 13 Oct 2026) - [CVE-2026-69528: Microsoft Windows Shell missing authentication privilege escalation](https://junglewise.ai/threats/cve-2026-69528-microsoft-windows-shell-missing-authentication-privilege) (high, CVSS 7.8, published 8 Sep 2026) - [CVE-2026-69392: Microsoft Windows Shell use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-69392-use-after-free-in-windows-shell-allows-an-authorized-attacker-to) (high, CVSS 7.8, published 8 Sep 2026) - [CVE-2026-42907: Microsoft Windows Shell information disclosure](https://junglewise.ai/threats/cve-2026-42907-microsoft-windows-shell-information-disclosure) (medium, CVSS 6.5, published 9 Jun 2026) - [CVE-2026-42906: Microsoft Windows Shell information disclosure](https://junglewise.ai/threats/cve-2026-42906-microsoft-windows-shell-information-disclosure) (medium, CVSS 5.5, published 9 Jun 2026) - [CVE-2026-32202: Microsoft Windows Shell protection mechanism failure spoofing](https://junglewise.ai/threats/cve-2026-32202-microsoft-windows-shell-protection-mechanism-failure-spoofing) (critical, exploited in the wild, CVSS 4.3, published 14 Apr 2026) ## Most severe Microsoft Windows Shell vulnerabilities - [CVE-2026-32202: Microsoft Windows Shell protection mechanism failure spoofing](https://junglewise.ai/threats/cve-2026-32202-microsoft-windows-shell-protection-mechanism-failure-spoofing) (critical, exploited in the wild, CVSS 4.3, published 14 Apr 2026) - [CVE-2026-69528: Microsoft Windows Shell missing authentication privilege escalation](https://junglewise.ai/threats/cve-2026-69528-microsoft-windows-shell-missing-authentication-privilege) (high, CVSS 7.8, published 8 Sep 2026) - [CVE-2026-69392: Microsoft Windows Shell use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-69392-use-after-free-in-windows-shell-allows-an-authorized-attacker-to) (high, CVSS 7.8, published 8 Sep 2026) - [CVE-2026-83906: Windows Shell authentication algorithm spoofing](https://junglewise.ai/threats/cve-2026-83906-incorrect-implementation-of-authentication-algorithm-in-windows) (medium, CVSS 6.5, published 13 Oct 2026) - [CVE-2026-42907: Microsoft Windows Shell information disclosure](https://junglewise.ai/threats/cve-2026-42907-microsoft-windows-shell-information-disclosure) (medium, CVSS 6.5, published 9 Jun 2026) - [CVE-2026-42906: Microsoft Windows Shell information disclosure](https://junglewise.ai/threats/cve-2026-42906-microsoft-windows-shell-information-disclosure) (medium, CVSS 5.5, published 9 Jun 2026) - [CVE-2026-105506: Microsoft Windows Shell buffer over-read information disclosure](https://junglewise.ai/threats/cve-2026-105506-buffer-over-read-in-windows-shell-allows-an-authorized-attacker) (medium, CVSS 5, published 10 Nov 2026) - [CVE-2026-83905: Windows Shell sensitive information disclosure](https://junglewise.ai/threats/cve-2026-83905-exposure-of-sensitive-system-information-to-an-unauthorized) (medium, CVSS 4.7, published 13 Oct 2026) ## Vulnerabilities per week 2 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 2 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 2 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Other Microsoft technologies - [Microsoft Windows](https://junglewise.ai/threats/technologies/windows): 2,362 vulnerabilities - [Microsoft Windows 10](https://junglewise.ai/threats/technologies/windows-10): 589 vulnerabilities - [Microsoft Windows 11 24h2](https://junglewise.ai/threats/technologies/windows-11-24h2): 565 vulnerabilities - [Microsoft Windows 11 25h2](https://junglewise.ai/threats/technologies/windows-11-25h2): 534 vulnerabilities - [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025): 534 vulnerabilities - [Microsoft Windows Server 2022](https://junglewise.ai/threats/technologies/windows-server-2022): 528 vulnerabilities - [Microsoft Windows Server 2019](https://junglewise.ai/threats/technologies/windows-server-2019): 521 vulnerabilities - [Microsoft Windows Server 2012](https://junglewise.ai/threats/technologies/windows-server-2012): 517 vulnerabilities - [Microsoft Windows 11](https://junglewise.ai/threats/technologies/windows-11): 494 vulnerabilities - [Microsoft Windows Server 2016](https://junglewise.ai/threats/technologies/windows-server-2016): 476 vulnerabilities - [Microsoft Windows 10 1809](https://junglewise.ai/threats/technologies/windows-10-1809): 380 vulnerabilities - [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2): 373 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Microsoft Windows Shell vulnerabilities", https://junglewise.ai/threats/technologies/windows-shell, 13 November 2026.