7.5

CVE-2026-70186: microsoft asp.net core 10.0 Deadlock

CVSS: 7.5v3.1HighAwaiting analysis
AliasesGHSA-mf4x-w4gh-4656CGA-cpfc-52wh-324mCGA-hfgg-w67h-m365
Published 13-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-70186 is a high (CVSS 7.5) Deadlock vulnerability in microsoft asp.net core 10.0. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.3% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.85%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

Deadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

14-10-202619-10-2026
EPSS score
0.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

NuGet11 products
  • Microsoft.AspNetCore.App.Runtime.linux-arm≥ 8.0.0, < 8.0.32 | ≥ 10.0.0, < 10.0.13 | ≥ 9.0.0, < 9.0.21
  • Microsoft.AspNetCore.App.Runtime.linux-arm64≥ 8.0.0, < 8.0.32 | ≥ 10.0.0, < 10.0.13 | ≥ 9.0.0, < 9.0.21
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm≥ 8.0.0, < 8.0.32 | ≥ 10.0.0, < 10.0.13 | ≥ 9.0.0, < 9.0.21
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64≥ 8.0.0, < 8.0.32 | ≥ 10.0.0, < 10.0.13 | ≥ 9.0.0, < 9.0.21
  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64≥ 8.0.0, < 8.0.32 | ≥ 10.0.0, < 10.0.13 | ≥ 9.0.0, < 9.0.21
Microsoft5 products
Ubuntu4 products
  • dotnet10All versions (No fix recorded)
  • dotnet6All versions (No fix recorded)
  • dotnet7All versions (No fix recorded)
  • dotnet8All versions (No fix recorded)
Chainguard2 products
  • dotnet-bootstrap-8All versions (No fix recorded)
  • dotnet-bootstrap-9All versions (No fix recorded)
Wolfi2 products
  • dotnet-bootstrap-8All versions (No fix recorded)
  • dotnet-bootstrap-9All versions (No fix recorded)

5 vendors · 24 products

References

9 links