Linuxsecurity Critical .NET Bypass Vulnerability in Ubuntu 25.10 and 22.04 LTS
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A critical security flaw has been identified in the .NET framework affecting Ubuntu 25.10 and 22.04 LTS. Discovered by Kevin Jones, the vulnerability in the System.Security.Cryptography.Cose component allows attackers to bypass security checks, potentially leading to unauthorized access or data manipulation. Users are advised to apply patches to mitigate this risk.
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Updated 213d ago How this analysis works
Timeline
2026-02-10
CVE-2026-21218 published
2026-02-11
Ubuntu security announcement USN-8025-1 released
2026-02-12
Linuxsecurity article published on the vulnerability
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