VIR Vulnerability Intelligence Relay

CVE-2026-21218

unknown
Published 2026-02-10 · Modified 2026-02-23
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
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CVSS v4 NEW
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not yet in upstream
VIR risk
—

Description

Microsoft Security Advisory CVE-2026-21218 | .NET Security Feature Bypass Vulnerability

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact
EcosystemPackageVulnerableFixed
nuget NuGetSystem.Security.Cryptography.Cose>=8.0.0,<8.0.28.0.2
nuget NuGetSystem.Security.Cryptography.Cose>=9.0.0,<9.0.139.0.13
nuget NuGetSystem.Security.Cryptography.Cose>=10.0.0,<10.0.310.0.3

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.