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7.8 High

CVE-2026-62886 Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally

Description

Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

Affected products and versions

Product Affected versions Fixed in
.NET 10.0 10.0 10.0.0 → < 10.0.11 10.0.11
.NET 8.0 8.0 8.0.0 → < 8.0.30 8.0.30
.NET 9.0 9.0 9.0.0 → < 9.0.19 9.0.19
Microsoft Visual Studio 2022 version 17.14 17.14 17.14.0 → < 17.14.38 17.14.38
Microsoft Visual Studio 2026 version 18.8 18.0 18.0 → < 18.8.3 18.8.3
Microsoft .NET Framework 3.5 3.5 3.5.0 → latest No fix stated
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 3.0 3.0.0.0 → latest No fix stated
Microsoft .NET Framework 3.5 AND 4.7.2 4.7 4.7.0 → latest No fix stated
Microsoft .NET Framework 3.5 AND 4.8 4.8 4.8.0 → latest No fix stated
Show the 4 other branches
Product Affected versions Fixed in
Microsoft .NET Framework 3.5 AND 4.8.1 4.8 4.8.1 → latest No fix stated
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7 4.7.0 → < 4.7.4145.0 4.7.4145.0
Microsoft .NET Framework 4.8 4.8 4.8.0 → < 4.8.4806.0 4.8.4806.0
Microsoft .NET Framework 4.8.1 4.8 4.8.0.0 → < 4.8.9347.0 4.8.9347.0

References

Timeline

  1. Published
  2. Last modified

Other CVEs of .NET 10.0

The 70 CVEs of .NET 10.0 →
CVE-2026-105016 Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network 9.8 Critical CVE-2026-58280 Uncontrolled recursion in .NET allows an unauthorized attacker to deny service over a network 7.5 High CVE-2026-96957 Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature… 8.8 High CVE-2026-96234 Origin validation error in .NET allows an unauthorized attacker to disclose information over a network 5.3 Medium
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