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Δ / VULNERABILITY RECORD

CVE-2026-62897.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 7No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 13, 2026

Disclosure summary

Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.

Source-reported weakness categories

CWE-190

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Aug

Open original source · Updated Aug 13, 2026

.NET Framework Remote Code Execution Vulnerability

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 7

VendorProduct / associationVersion / bounds
Microsoft update guideMicrosoft .NET Framework 4.8.1 on Windows 11 Version 26H1 for ARM64-based Systems (MSRC status code 3)
Microsoft update guideMicrosoft .NET Framework 3.5 on Windows 11 Version 26H1 for ARM64-based Systems (MSRC status code 3)
Microsoft update guideMicrosoft .NET Framework 4.8.1 on Windows 11 version 26H1 for x64-based Systems (MSRC status code 3)
Microsoft update guide.NET 10.0 installed on Windows (MSRC status code 3)
Microsoft update guideMicrosoft .NET Framework 3.5 on Windows 11 version 26H1 for x64-based Systems (MSRC status code 3)
Microsoft update guide.NET 8.0 installed on Windows (MSRC status code 3)
Microsoft update guide.NET 9.0 installed on Windows (MSRC status code 3)
Microsoft update guideMicrosoft Visual Studio 2026 version 18.8 (MSRC status code 3)
Microsoft update guideMicrosoft Visual Studio 2022 version 17.14 (MSRC status code 3)
Microsoft update guideMicrosoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for ARM64-based Systems (MSRC status code 3)
Microsoft update guideMicrosoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems (MSRC status code 3)

Vendor remediation references

  • 5120711 · build 4.8.9344.0 · product IDs 12078-20854, 12078-20853
  • Vendor guidance · product IDs 12078-20854, 12078-20853
  • 5120747 · build 2.0.50727.9183 & 3.0.30729.9169 · product IDs 2472-20854, 2472-20853
  • Vendor guidance · product IDs 2472-20854, 2472-20853
  • 5122106 · build 10.0.11 · product IDs 20837
  • Vendor guidance · product IDs 20837
  • 5122104 · build 8.0.30 · product IDs 12414
  • Vendor guidance · product IDs 12414
  • 5122105 · build 9.0.19 · product IDs 12434
  • Vendor guidance · product IDs 12434
  • Vendor guidance · build 18.8.3 · product IDs 21681
  • Vendor guidance · product IDs 21681
  • Vendor guidance · build 17.14.38 · product IDs 16767
  • Vendor guidance · product IDs 16767
  • 5120703 · build 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0 · product IDs 11676-11570
  • Vendor guidance · product IDs 11676-11570
  • 5120698 · build 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0 · product IDs 11677-11570
  • Vendor guidance · product IDs 11677-11570

Original records & references

PUBLISHED 2026-08-11T03:00:00-04:00
MODIFIED 2026-08-13T03:00:00-04:00
INGESTED 2026-10-08T12:40:36-04:00