CVE-2026-69304
ASP.NET Core Denial of Service Vulnerability
At a glance
- Severity
- MEDIUM 5.9
- EPSS
- EPSS 0.85 % · percentile 58 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Improper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Scores
| Version | Score | Vector | Scored by |
|---|
| CVSS 3.1 | MEDIUM 5.9 | 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 | microsoft |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
Advisories
- GHSA-8cp2-47hg-mfgh — Microsoft Security Advisory CVE-2026-69304 – ASP.NET Core Denial of Service Vulnerability
European references
CERT-FR advisories
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* ≥ 8.0.0 < 8.0.28cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* ≥ 9.0.0 < 9.0.17cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* ≥ 10.0.0 < 10.0.9cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* > 11.0.0cpe:2.3:a:microsoft:asp.net_core:11.0:rc1:*:*:*:*:*:*cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* ≥ 17.14.0 < 17.14.40cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* ≥ 18.9.0 < 18.9.3cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 8.0.0 < 8.0.31cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 9.0.0 < 9.0.20cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* ≥ 10.0.0 < 10.0.12
Affected products
References
Sources
