# Microsoft System.Security.Cryptography.Xml vulnerabilities Source: https://junglewise.ai/threats/technologies/microsoft-system-security-cryptography-xml Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 19 October 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/microsoft-system-security-cryptography-xml.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 4 vulnerabilities in Microsoft System.Security.Cryptography.Xml: 4 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-96222, was published on 13 October 2026. 4 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 4 - Last 30 days: 4 - Last 90 days: 4 - All time: 4 (0 critical, 0 exploited in the wild) ## About Microsoft System.Security.Cryptography.Xml Cryptographic library for XML digital signatures and encryption operations. ## Latest Microsoft System.Security.Cryptography.Xml vulnerabilities - [CVE-2026-96222: Microsoft .NET certificate validation bypass in Cryptography.Xml](https://junglewise.ai/threats/cve-2026-96222-microsoft-security-advisory-net-spoofing-vulnerability) (high, CVSS 7.4, published 13 Oct 2026) - [CVE-2026-96960: Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.](https://junglewise.ai/threats/cve-2026-96960-microsoft-security-advisory-net-and-visual-studio-denial-of) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-96959: Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.](https://junglewise.ai/threats/cve-2026-96959-microsoft-security-advisory-net-and-visual-studio-denial-of) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-96958: Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.](https://junglewise.ai/threats/cve-2026-96958-microsoft-security-advisory-net-and-visual-studio-denial-of) (high, CVSS 7.5, published 13 Oct 2026) ## Most severe Microsoft System.Security.Cryptography.Xml vulnerabilities - [CVE-2026-96960: Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.](https://junglewise.ai/threats/cve-2026-96960-microsoft-security-advisory-net-and-visual-studio-denial-of) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-96958: Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.](https://junglewise.ai/threats/cve-2026-96958-microsoft-security-advisory-net-and-visual-studio-denial-of) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-96959: Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.](https://junglewise.ai/threats/cve-2026-96959-microsoft-security-advisory-net-and-visual-studio-denial-of) (high, CVSS 7.5, published 13 Oct 2026) - [CVE-2026-96222: Microsoft .NET certificate validation bypass in Cryptography.Xml](https://junglewise.ai/threats/cve-2026-96222-microsoft-security-advisory-net-spoofing-vulnerability) (high, CVSS 7.4, published 13 Oct 2026) ## Vulnerabilities per week 4 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 27 Jul 2026 | 0 | 0 | 0 | | 3 Aug 2026 | 0 | 0 | 0 | | 10 Aug 2026 | 0 | 0 | 0 | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 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 | 4 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | ## Other Microsoft technologies - [Microsoft Windows](https://junglewise.ai/threats/technologies/windows-): 1,706 vulnerabilities - [Microsoft Windows 10](https://junglewise.ai/threats/technologies/windows-10): 588 vulnerabilities - [Microsoft Windows 11](https://junglewise.ai/threats/technologies/windows-11): 493 vulnerabilities - [Microsoft Windows 11 24h2](https://junglewise.ai/threats/technologies/windows-11-24h2): 486 vulnerabilities - [Microsoft Windows Server 2012](https://junglewise.ai/threats/technologies/windows-server-2012): 473 vulnerabilities - [Microsoft Windows Server 2019](https://junglewise.ai/threats/technologies/windows-server-2019): 469 vulnerabilities - [Microsoft Windows Server 2022](https://junglewise.ai/threats/technologies/windows-server-2022): 461 vulnerabilities - [Microsoft Windows 11 25h2](https://junglewise.ai/threats/technologies/windows-11-25h2): 455 vulnerabilities - [Microsoft Windows Server 2016](https://junglewise.ai/threats/technologies/windows-server-2016): 427 vulnerabilities - [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025): 427 vulnerabilities - [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2): 359 vulnerabilities - [Microsoft Windows 10 22h2](https://junglewise.ai/threats/technologies/windows-10-22h2): 358 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 System.Security.Cryptography.Xml vulnerabilities", https://junglewise.ai/threats/technologies/microsoft-system-security-cryptography-xml, 19 October 2026.