VULNERABILITY INTELLIGENCE

CVE-2020-1045

CVSS score7.5 HIGH
EPSS probability5.93%
CISA KEVNot currently listed
Published2020-09-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

<p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p>

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references