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CVE-2026-32203Suited to automated attack · CISA

.NET and Visual Studio Denial of Service Vulnerability

CVSS score

7.5

EPSS probability

%2.4

Risk score

0.2

Published

6 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-32203 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-32203 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1microsoft.NET 10.0 View
2microsoft.NET 8.0 View
3microsoft.NET 9.0 View
4microsoftMicrosoft Visual Studio 2022 version 17.12 View
5microsoftMicrosoft Visual Studio 2022 version 17.14 View
6microsoftMicrosoft Visual Studio 2026 version 18.4 View
7microsoft.net View
8applemacos View
9linuxlinux kernel View
10microsoftwindows View
11microsoft.net View
12microsoft.net View
13microsoftvisual studio 2022 View
14microsoftvisual studio 2022 View
15microsoftvisual studio 2026 View
16nugetSystem.Security.Cryptography.Xml View
17nugetSystem.Security.Cryptography.Xml View
18nugetSystem.Security.Cryptography.Xml View
19nugetSystem.Security.Cryptography.Xml View
20nugetSystem.Security.Cryptography.Xml View
21nugetSystem.Security.Cryptography.Xml View
Total affected vendors: 4|Products: 21

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD
7.5CVSS 3.x—Vector not publishedGitHub Advisory
7.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CCVE CNA
7.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE ADP
0.0CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

5 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

osvSystem.Security.Cryptography.Xml10.0.6

OSV düzeltilmiş sürüm: 10.0.6

osvSystem.Security.Cryptography.Xml9.0.15

OSV düzeltilmiş sürüm: 9.0.15

osvSystem.Security.Cryptography.Xml8.0.3

OSV düzeltilmiş sürüm: 8.0.3

cvelist

.NET and Visual Studio Denial of Service Vulnerability

Open source
reference

.NET and Visual Studio Denial of Service Vulnerability

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-32203 is associated with the following CWEs:

CWE-121: Common Weakness Enumeration Entry CWE-121CWE-20: Improper Input ValidationCWE-787: Out-of-bounds Write

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-32203 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

.NET and Visual Studio Denial of Service Vulnerabilitypatchhttps://access.redhat.com/errata/RHSA-2026:13280nvdhttps://access.redhat.com/errata/RHSA-2026:13281nvdhttps://access.redhat.com/errata/RHSA-2026:13282nvdhttps://access.redhat.com/errata/RHSA-2026:13283nvdhttps://access.redhat.com/errata/RHSA-2026:13693nvdhttps://access.redhat.com/errata/RHSA-2026:8467nvdhttps://access.redhat.com/errata/RHSA-2026:8468nvdhttps://access.redhat.com/errata/RHSA-2026:8469nvdhttps://access.redhat.com/errata/RHSA-2026:8470nvd

CVSS Vector Radar Chart

7.5 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama doğrulandı

5 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

M
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microsoft
A
apple logo
apple
L
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linux
N
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nuget

Weakness Type (CWE & CAPEC)

CWE-121 CWE-20 CWE-787

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