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High 8.8Published Oct 13, 2026
CVE-2026-96957.NET Security Feature Bypass Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft .NET 10.0 and 6 other products. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.46%, higher than 38% of scored CVEs.
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Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Weakness (CWE)
- CWE-347
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.46% (percentile 38)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 13, 2026
Affected products
Microsoft .NET 10.0 microsoft:net_10.0 (from the name) | from 10.0.0 before 10.0.402 | CNA record |
Microsoft .NET 11.0 microsoft:net_11.0 (from the name) | from 11.0.0 before 11.0.100-rc.2 | CNA record |
Microsoft Microsoft Visual Studio 2022 version 17.14 microsoft:visual_studio_2022_version_17.14 (from the name) | from 17.14.0 before 17.14.42 | CNA record |
Microsoft Microsoft Visual Studio 2026 version 18.10 microsoft:visual_studio_2026_version_18.10 (from the name) | from 18.10.0 before 18.10.4 | CNA record |
microsoft .net microsoft:.net | from 10.0.0 before 10.0.13; 11.0.0; 11.0.0; 11.0.0; 11.0.0; 11.0.0; 11.0.0; 11.0.0; and 1 more ranges | NVD |
microsoft visual_studio_2022 microsoft:visual_studio_2022 | from 17.14.0 before 17.14.42 | NVD |
microsoft visual_studio_2026 microsoft:visual_studio_2026 | from 18.10.0 before 18.10.4 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96957vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.