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CVE-2026-58280

.NET Denial of Service Vulnerability

CVSS score

7.5

EPSS probability

—

Risk score

0.8

Published

3 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-58280 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

Uncontrolled recursion in .NET allows an unauthorized attacker to deny service over a network.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-58280 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1microsoft.NET 10.0 View
2microsoft.NET 11.0 View
3microsoft.NET 8.0 View
4microsoft.NET 9.0 View
5microsoftMicrosoft .NET Framework 3.5 View
6microsoftMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 View
7microsoftMicrosoft .NET Framework 3.5 AND 4.7.2 View
8microsoftMicrosoft .NET Framework 3.5 AND 4.8 View
9microsoftMicrosoft .NET Framework 3.5 AND 4.8.1 View
10microsoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 View
11microsoftMicrosoft .NET Framework 4.8 View
12microsoftMicrosoft .NET Framework 4.8.1 View
13microsoftMicrosoft Visual Studio 2022 version 17.14 View
14microsoftMicrosoft Visual Studio 2026 version 18.10 View
15nugetMicrosoft.NETCore.App.Runtime.linux-arm View
16nugetMicrosoft.NETCore.App.Runtime.linux-arm64 View
17nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm View
18nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm64 View
19nugetMicrosoft.NETCore.App.Runtime.linux-musl-x64 View
20nugetMicrosoft.NETCore.App.Runtime.linux-x64 View
21nugetMicrosoft.NETCore.App.Runtime.osx-arm64 View
22nugetMicrosoft.NETCore.App.Runtime.osx-x64 View
23nugetMicrosoft.NETCore.App.Runtime.win-arm View
24nugetMicrosoft.NETCore.App.Runtime.win-arm64 View
25nugetMicrosoft.NETCore.App.Runtime.win-x64 View
26nugetMicrosoft.NETCore.App.Runtime.win-x86 View
27nugetMicrosoft.NETCore.App.Runtime.linux-arm View
28nugetMicrosoft.NETCore.App.Runtime.linux-arm64 View
29nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm View
30nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm64 View
31nugetMicrosoft.NETCore.App.Runtime.linux-musl-x64 View
32nugetMicrosoft.NETCore.App.Runtime.linux-x64 View
33nugetMicrosoft.NETCore.App.Runtime.osx-arm64 View
34nugetMicrosoft.NETCore.App.Runtime.osx-x64 View
35nugetMicrosoft.NETCore.App.Runtime.win-arm View
36nugetMicrosoft.NETCore.App.Runtime.win-arm64 View
37nugetMicrosoft.NETCore.App.Runtime.win-x64 View
38nugetMicrosoft.NETCore.App.Runtime.win-x86 View
39nugetMicrosoft.NETCore.App.Runtime.linux-arm View
40nugetMicrosoft.NETCore.App.Runtime.linux-arm64 View
41nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm View
42nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm64 View
43nugetMicrosoft.NETCore.App.Runtime.linux-musl-x64 View
44nugetMicrosoft.NETCore.App.Runtime.linux-x64 View
45nugetMicrosoft.NETCore.App.Runtime.osx-arm64 View
46nugetMicrosoft.NETCore.App.Runtime.osx-x64 View
47nugetMicrosoft.NETCore.App.Runtime.win-arm View
48nugetMicrosoft.NETCore.App.Runtime.win-arm64 View
49nugetMicrosoft.NETCore.App.Runtime.win-x64 View
50nugetMicrosoft.NETCore.App.Runtime.win-x86 View
51nugetMicrosoft.NETCore.App.Runtime.linux-arm View
52nugetMicrosoft.NETCore.App.Runtime.linux-arm64 View
53nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm View
54nugetMicrosoft.NETCore.App.Runtime.linux-musl-arm64 View
55nugetMicrosoft.NETCore.App.Runtime.linux-musl-x64 View
56nugetMicrosoft.NETCore.App.Runtime.linux-x64 View
57nugetMicrosoft.NETCore.App.Runtime.osx-arm64 View
58nugetMicrosoft.NETCore.App.Runtime.osx-x64 View
59nugetMicrosoft.NETCore.App.Runtime.win-arm View
60nugetMicrosoft.NETCore.App.Runtime.win-arm64 View
61nugetMicrosoft.NETCore.App.Runtime.win-x64 View
62nugetMicrosoft.NETCore.App.Runtime.win-x86 View
Total affected vendors: 2|Products: 62

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 3.x—Vector not publishedGitHub Advisory
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD
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
0.0CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

.NET Denial of Service Vulnerability

Open source
reference

.NET 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-2026-58280 is associated with the following CWEs:

CWE-674: Common Weakness Enumeration Entry CWE-674

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-2026-58280 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 Denial of Service Vulnerabilitypatchhttps://github.com/dotnet/runtime/security/advisories/GHSA-mc4q-93x5-f6hjvendor-advisoryhttps://github.com/dotnet/announcements/issues/447vendor-advisoryhttps://github.com/dotnet/runtime/issues/135696vendor-advisoryhttps://github.com/advisories/GHSA-mc4q-93x5-f6hjvendor-advisory

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

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

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Weakness Type (CWE & CAPEC)

CWE-674

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