VulnerabilityModified
CVE-2026-32203
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.
HIGH 7.5EPSS 1.90%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.90% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-121, CWE-787
- Affected
- microsoft/.net · microsoft/visual studio 2022 · microsoft/visual studio 2026
- Source
- secure@microsoft.com
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32203Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:13280
- https://access.redhat.com/errata/RHSA-2026:13281
- https://access.redhat.com/errata/RHSA-2026:13282
- https://access.redhat.com/errata/RHSA-2026:13283
- https://access.redhat.com/errata/RHSA-2026:13693
- https://access.redhat.com/errata/RHSA-2026:8467
- https://access.redhat.com/errata/RHSA-2026:8468
- https://access.redhat.com/errata/RHSA-2026:8469
- https://access.redhat.com/errata/RHSA-2026:8470
- https://access.redhat.com/errata/RHSA-2026:8471
- https://access.redhat.com/errata/RHSA-2026:8472
- https://access.redhat.com/errata/RHSA-2026:8473
- https://access.redhat.com/errata/RHSA-2026:8474
- https://access.redhat.com/errata/RHSA-2026:8475
- https://access.redhat.com/errata/RHSA-2026:9077
- https://access.redhat.com/errata/RHSA-2026:9080
- https://access.redhat.com/errata/RHSA-2026:9205
- https://access.redhat.com/security/cve/CVE-2026-32203
- https://bugzilla.redhat.com/show_bug.cgi?id=2457740
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32203.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.