SEPTEMBER 29, 2026
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Case File

CVE-2021-24040

CRITICAL · CVSS 9.8 EPSS 17.35% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-10 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 17.4% probability of exploitation in the next 30 days. It may be remotely exploitable.

Public Exploit Signal

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

Detected Signals
remote code execution code execution
External Security References

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

CVE
CVE-2021-24040
Severity
CRITICAL
CVSS
9.8
EPSS
17.35%

Original NVD Description

Due to use of unsafe YAML deserialization logic, an attacker with the ability to modify local YAML configuration files could provide malicious input, resulting in remote code execution or similar risks. This issue affects ParlAI prior to v1.1.0.

Related CVEs

Other vulnerabilities affecting the same vendor(s)