CVE-2026-96957
8.8 HIGHPublished 2026-10-13 · Updated 2026-10-16
AI risk analysis
- Summary
- This vulnerability allows attackers to bypass cryptographic signature verification in .NET applications, enabling them to forge or manipulate signed data over the network without proper authentication. This creates a significant security gap where malicious actors can exploit trust relationships established through digital signatures.
- Exploitability
- Exploitation requires a network-based attack against a vulnerable .NET application with minimal preconditions, making it moderately difficult to execute but highly impactful once successful.
- Blast radius
- If exploited, this flaw could affect numerous enterprise applications and services running on Windows, macOS, Linux, and Visual Studio 2022 environments that rely on .NET cryptographic signatures, potentially leading to widespread authentication bypasses and data manipulation across multiple systems.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Apply the latest .NET Framework security updates from Microsoft, specifically targeting versions affected by CVE-2026-96957, or upgrade to .NET 8.0.100 or later if available.
signature-bypassdotnetcrypto
Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-347
Vendors
microsoft, apple, linux
Products
.net, macos, linux kernel, windows, visual studio 2022, visual studio 2026
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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