AUGUST 4, 2026
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Case File

CVE-2021-44164

CRITICAL · CVSS 9.8 EPSS 2.05%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-20 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It may be remotely exploitable.

CVE
CVE-2021-44164
Severity
CRITICAL
CVSS
9.8
EPSS
2.05%

Original NVD Description

Chain Sea ai chatbot system’s file upload function has insufficient filtering for special characters in URLs, which allows a remote attacker to by-pass file type validation, upload malicious script and execute arbitrary code without authentication, in order to take control of the system or terminate service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)