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Vulnerabilities

Vulnerability · CVE-2026-32177

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Published May 12, 2026 · catalog updated Jul 15, 2026 · visual studio 2022

Check if you run it

No confirmed exploitation is on record for CVE-2026-32177. EPSS is 0.57%. Act only if a listed version of visual studio 2022 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.57%
Remediation
Advisory link
Affected products
cpe microsoft/.net · cpe microsoft/.net framework · cpe microsoft/visual studio 2022 · cpe microsoft/visual studio 2026

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/.netversion unspecified
  • cpe microsoft/.net framework3.5
  • cpe microsoft/.net framework4.6.2
  • cpe microsoft/.net framework4.7
  • cpe microsoft/.net framework4.7.1
  • cpe microsoft/.net framework4.7.2
  • cpe microsoft/.net framework4.8
  • cpe microsoft/visual studio 2022version unspecified
  • cpe microsoft/visual studio 2026version unspecified

How to fix CVE-2026-32177

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-32177. EPSS is 0.57%. Act only if a listed version of visual studio 2022 is installed.

Which versions are affected?

Compare what you have installed with microsoft/.net framework 3.5; microsoft/.net framework 4.6.2; microsoft/.net framework 4.7; microsoft/.net framework 4.7.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-122: Heap-based Buffer Overflow; CWE-20: Improper Input Validation; CWE-787: Out-of-bounds Write. EPSS 0.57%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

  2. Jul 15, 2026 · NIST NVD

    Updated

    Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Sources

  • CVE.orgVulnerability recordCVE-2026-32177

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-32177

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2026-32177

    Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.