AUGUST 5, 2026
Live Feed
Back to database
Case File

CVE-2020-1045

HIGH · CVSS 7.5 EPSS 5.97% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-09-11 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Microsoft. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-1045
Severity
HIGH
CVSS
7.5
EPSS
5.97%
Microsoft

Original NVD 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>

Related CVEs

Other vulnerabilities affecting the same vendor(s)