CVE-2026-57108High· 7.5▾ Twilight

.NET Denial of Service Vulnerability

Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network.

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score41/ 100 · Moderate

impact 41.3 · likelihood 0.2 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

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Published

Jul 14, 2026

Updated

Sep 17, 2026

CVSS

7.5

Vendor

Microsoft

Product

.NET 10.0

CWE

CWE-843

Depth score

41 · Moderate

EPSS

1.1% · p64

Platforms

—

Source

CVEORG

Vector

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

CISA SSVC

decided 2026-07-14

Exploitation: none
Automatable: yes
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.

EPSS history

Exploit-prediction probability, daily snapshots since Jul 20.

1.1% → 1.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 65 days

Jul 14, 2026Published
Disclosed via CVEORG
Jul 20, 2026EPSS first tracked
1.1%
Jul 24, 2026EPSS peak
1.1% → 1.1%
Sep 17, 2026Record revised
Last analysed / modified upstream

Microsoft CWE-843 #cve.org #ghsa #nuget

Affected

.net_10.0 >= 10.0.0 < 10.0.10
.net_8.0 >= 8.0.0 < 8.0.29
.net_9.0 >= 9.0.0 < 9.0.18

Patched in

Microsoft.NetCore.App.Runtime.linux-arm 10.0.10
Microsoft.NetCore.App.Runtime.linux-arm64 10.0.10
Microsoft.NetCore.App.Runtime.linux-musl-arm 10.0.10
Microsoft.NetCore.App.Runtime.linux-musl-arm64 10.0.10
Microsoft.NetCore.App.Runtime.linux-musl-x64 10.0.10
Microsoft.NetCore.App.Runtime.linux-x64 10.0.10
Microsoft.NetCore.App.Runtime.osx-arm64 10.0.10
Microsoft.NetCore.App.Runtime.osx-x64 10.0.10
Microsoft.NetCore.App.Runtime.linux-arm 9.0.18
Microsoft.NetCore.App.Runtime.linux-arm64 9.0.18
Microsoft.NetCore.App.Runtime.linux-musl-arm 9.0.18
Microsoft.NetCore.App.Runtime.linux-musl-arm64 9.0.18
Microsoft.NetCore.App.Runtime.linux-musl-x64 9.0.18
Microsoft.NetCore.App.Runtime.linux-x64 9.0.18
Microsoft.NetCore.App.Runtime.osx-arm64 9.0.18
Microsoft.NetCore.App.Runtime.osx-x64 9.0.18
Microsoft.NetCore.App.Runtime.linux-arm 8.0.29
Microsoft.NetCore.App.Runtime.linux-arm64 8.0.29
Microsoft.NetCore.App.Runtime.linux-musl-arm 8.0.29
Microsoft.NetCore.App.Runtime.linux-musl-arm64 8.0.29
Microsoft.NetCore.App.Runtime.linux-musl-x64 8.0.29
Microsoft.NetCore.App.Runtime.linux-x64 8.0.29
Microsoft.NetCore.App.Runtime.osx-arm64 8.0.29
Microsoft.NetCore.App.Runtime.osx-x64 8.0.29

Full technical detail▾

Overview

Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker to deny service over a network.

Affected

.net_10.0 >= 10.0.0 < 10.0.10
.net_8.0 >= 8.0.0 < 8.0.29
.net_9.0 >= 9.0.0 < 9.0.18

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Package advisory (CVE-2026-57108)

Affected packages:

Microsoft.NetCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.9
Microsoft.NetCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.17
Microsoft.NetCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.28
Microsoft.NetCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.28

Patched in:

Microsoft.NetCore.App.Runtime.linux-arm 10.0.10
Microsoft.NetCore.App.Runtime.linux-arm64 10.0.10
Microsoft.NetCore.App.Runtime.linux-musl-arm 10.0.10
Microsoft.NetCore.App.Runtime.linux-musl-arm64 10.0.10
Microsoft.NetCore.App.Runtime.linux-musl-x64 10.0.10
Microsoft.NetCore.App.Runtime.linux-x64 10.0.10
Microsoft.NetCore.App.Runtime.osx-arm64 10.0.10
Microsoft.NetCore.App.Runtime.osx-x64 10.0.10
Microsoft.NetCore.App.Runtime.linux-arm 9.0.18
Microsoft.NetCore.App.Runtime.linux-arm64 9.0.18
Microsoft.NetCore.App.Runtime.linux-musl-arm 9.0.18
Microsoft.NetCore.App.Runtime.linux-musl-arm64 9.0.18
Microsoft.NetCore.App.Runtime.linux-musl-x64 9.0.18
Microsoft.NetCore.App.Runtime.linux-x64 9.0.18
Microsoft.NetCore.App.Runtime.osx-arm64 9.0.18
Microsoft.NetCore.App.Runtime.osx-x64 9.0.18
Microsoft.NetCore.App.Runtime.linux-arm 8.0.29
Microsoft.NetCore.App.Runtime.linux-arm64 8.0.29
Microsoft.NetCore.App.Runtime.linux-musl-arm 8.0.29
Microsoft.NetCore.App.Runtime.linux-musl-arm64 8.0.29
Microsoft.NetCore.App.Runtime.linux-musl-x64 8.0.29
Microsoft.NetCore.App.Runtime.linux-x64 8.0.29
Microsoft.NetCore.App.Runtime.osx-arm64 8.0.29
Microsoft.NetCore.App.Runtime.osx-x64 8.0.29

Source: https://github.com/advisories/GHSA-rp2p-6cmp-jxj9

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org#ghsa#nuget

Package advisory (CVE-2026-57108)

Affected packages:

Microsoft.NetCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.9

Microsoft.NetCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.17

Microsoft.NetCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.28

Microsoft.NetCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.28

Patched in:

Microsoft.NetCore.App.Runtime.linux-arm 10.0.10

Microsoft.NetCore.App.Runtime.linux-arm64 10.0.10

Microsoft.NetCore.App.Runtime.linux-musl-arm 10.0.10

Microsoft.NetCore.App.Runtime.linux-musl-arm64 10.0.10

Microsoft.NetCore.App.Runtime.linux-musl-x64 10.0.10

Microsoft.NetCore.App.Runtime.linux-x64 10.0.10

Microsoft.NetCore.App.Runtime.osx-arm64 10.0.10

Microsoft.NetCore.App.Runtime.osx-x64 10.0.10

Microsoft.NetCore.App.Runtime.linux-arm 9.0.18

Microsoft.NetCore.App.Runtime.linux-arm64 9.0.18

Microsoft.NetCore.App.Runtime.linux-musl-arm 9.0.18

Microsoft.NetCore.App.Runtime.linux-musl-arm64 9.0.18

Microsoft.NetCore.App.Runtime.linux-musl-x64 9.0.18

Microsoft.NetCore.App.Runtime.linux-x64 9.0.18

Microsoft.NetCore.App.Runtime.osx-arm64 9.0.18

Microsoft.NetCore.App.Runtime.osx-x64 9.0.18

Microsoft.NetCore.App.Runtime.linux-arm 8.0.29

Microsoft.NetCore.App.Runtime.linux-arm64 8.0.29

Microsoft.NetCore.App.Runtime.linux-musl-arm 8.0.29

Microsoft.NetCore.App.Runtime.linux-musl-arm64 8.0.29

Microsoft.NetCore.App.Runtime.linux-musl-x64 8.0.29

Microsoft.NetCore.App.Runtime.linux-x64 8.0.29

Microsoft.NetCore.App.Runtime.osx-arm64 8.0.29

Microsoft.NetCore.App.Runtime.osx-x64 8.0.29