PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-62872 Microsoft CVE debrief

CVE-2026-62872 is a .NET Framework Elevation of Privilege Vulnerability. An authorized attacker could exploit this vulnerability over a network. Microsoft has released a patch for this vulnerability. The vulnerability allows an attacker to elevate privileges due to incorrect authorization in .NET Framework. System administrators and developers should assess exposure and apply patches. Verify and update .NET Framework versions to prevent exploitation. Review and update system configurations and network access controls.

Vendor
Microsoft
Product
Microsoft .NET Framework 3.5
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-11
Original CVE updated
2026-10-08
Advisory published
2026-08-11
Advisory updated
2026-10-08

Who should care

System administrators and developers using .NET Framework should assess exposure and apply patches. This vulnerability could impact .NET Framework deployments. Verify and update .NET Framework versions to prevent exploitation. Review and update system configurations and network access controls. Monitor system logs for potential exploitation attempts.

Why it matters

CVE-2026-62872 is a .NET Framework Elevation of Privilege Vulnerability that allows an authorized attacker to elevate privileges over a network. System administrators and developers should assess exposure and apply patches.

  • Verify and update .NET Framework versions to prevent exploitation
  • Review and update system configurations and network access controls
  • Apply patches for .NET Framework Elevation of Privilege Vulnerability
  • Monitor system logs for potential exploitation attempts

Technical summary

The .NET Framework Elevation of Privilege Vulnerability allows an authorized attacker to elevate privileges over a network due to incorrect authorization in .NET Framework. This could allow an attacker to gain elevated privileges on a system. Microsoft has released a patch for this vulnerability. System administrators and developers should assess exposure and apply patches.

Defensive priority

Apply patches for .NET Framework Elevation of Privilege Vulnerability

Recommended defensive actions

  • Apply patches for .NET Framework Elevation of Privilege Vulnerability
  • Review and update .NET Framework versions
  • Verify system configurations and network access controls

Evidence notes

The CVE Program record and NVD vulnerability detail provide information on the vulnerability. Microsoft has released a patch for this vulnerability. The CVE record was published on 2026-08-11T17:06:22.810Z and has not been modified since then. The NVD entry is currently HIGH. The vulnerability is caused by incorrect authorization in .NET Framework.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-62872 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-62872

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-62872 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-62872

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • .NET Framework Elevation of Privilege Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/62xxx/CVE-2026-62872.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62872

    Supplemental source - vendor-advisory, patch

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.