Security October 2026 Latest record ASP.NET Core Denial of Service Vulnerability Recorded 22 Oct 2026 at 17:33 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position.
See the latest record .
The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.
The historical “Publicly disclosed: No” field could represent a missing MSRC assessment. It does not establish that the vulnerability was undisclosed. The original recorded fields remain below.
CVE Microsoft Security Response Center
ASP.NET Core Denial of Service Vulnerability Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.
CVE CVE-2026-70196
Severity Important
CVSS base score 5.9
CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Impact Denial of Service
Exploitation detected Not reported by MSRC
Publicly disclosed No
Exploitability Exploitation Less Likely
Component ASP.NET Core
Weakness CWE-407: Inefficient Algorithmic Complexity
Issued by Microsoft
Customer action Required: apply the update
Affected products ASP.NET Core 10.0, ASP.NET Core 8.0, ASP.NET Core 9.0, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10
Updates that fix it KB5130034: ASP.NET Core 8.0; KB5130035: ASP.NET Core 9.0; KB5130036: ASP.NET Core 10.0
CISA KEV Not listed in the collected catalog
EPSS 0.8%; scored 22 Oct 2026
Public exploit code No Nuclei template listed
Published 13 Oct 2026 07:00 UTC
Last revised 13 Oct 2026 07:00 UTC
Revision note Information published.
Microsoft security releases Complete at observationRead 22 Oct 2026 at 17:32 UTC
CISA KEV Complete at observationRead 22 Oct 2026 at 17:32 UTC
FIRST EPSS Complete at observationRead 22 Oct 2026 at 17:32 UTC
Public detection templates (Nuclei) Complete at observationRead 22 Oct 2026 at 17:32 UTC Coverage describes the sources at this observation. A complete read then does not establish their current position.
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
Cite this version Field-level log (9)
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22 Oct 2026 · 17:33:15 UTC
EPSS 0.8%; scored 21 Oct 2026 → 0.8%; scored 22 Oct 2026 21 Oct 2026 · 21:47:24 UTC
EPSS 0.8%; scored 20 Oct 2026 → 0.8%; scored 21 Oct 2026 20 Oct 2026 · 20:53:31 UTC
EPSS 0.8%; scored 19 Oct 2026 → 0.8%; scored 20 Oct 2026 19 Oct 2026 · 15:12:40 UTC
EPSS 0.8%; scored 18 Oct 2026 → 0.8%; scored 19 Oct 2026 18 Oct 2026 · 14:54:30 UTC
EPSS 0.8%; scored 16 Oct 2026 → 0.8%; scored 18 Oct 2026 18 Oct 2026 · 14:54:30 UTC
Link: October 2026 /security?release=2026-Oct#cves 16 Oct 2026 · 16:13:25 UTC
EPSS 0.8%; scored 15 Oct 2026 → 0.8%; scored 16 Oct 2026 15 Oct 2026 · 21:30:54 UTC
EPSS 0.8%; scored 14 Oct 2026 → 0.8%; scored 15 Oct 2026 15 Oct 2026 · 01:07:54 UTC
EPSS Not scored → 0.8%; scored 14 Oct 2026