CVE-2026-105016
critical
EU-CRITICAL
CVSS v3
9.8
CVSS v4 NEW
—
VIR risk
9.8
Description
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
Predictions
Exploit likelihood
97%
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 withsource_tier=community-verified.
OS impact
Windows Affected 1 release
| Version | Package | Status | Fixed in |
|---|---|---|---|
| — | — | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | Microsoft.Native.Quic.MsQuic.Schannel | = 2.5.11-ci.156755675 | 2.5.11-ci.159417053 |
| NuGet | Microsoft.Native.Quic.MsQuic.Schannel | >=2.5.11-ci.156755675,<2.5.11-ci.159417053 | 2.5.11-ci.159417053 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105016
- https://github.com/dotnet/runtime/security/advisories/GHSA-5gjq-3f94-rcf7
- https://github.com/dotnet/announcements/issues/446
- https://github.com/dotnet/runtime/issues/135695
- https://github.com/advisories/GHSA-5gjq-3f94-rcf7
- https://github.com/dotnet/runtime
CWEs
CWE-122
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.