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P4

CVE-2026-49451: OpenAPI.NET >= 2.0.0-preview11, < 2.7.5, >= 3.0.0, < 3.5.4

CVE-2026-49451. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.01238 (percentile 0.68909), scored 25-Oct-2026.

Affected technology

OpenAPI.NET · >= 2.0.0-preview11, < 2.7.5, >= 3.0.0, < 3.5.4
microsoft

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published

CWE
CWE-674
CCR priority
30.3 /100 (P4)
CVSS 3.1
7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
EPSS
0.01238 · percentile 0.68909 · 2026-10-25
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-49451.html