AUGUST 4, 2026
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Case File

CVE-2021-31257

MEDIUM · CVSS 5.5 EPSS 0.87% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-19 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗ github.com ↗

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

CVE
CVE-2021-31257
Severity
MEDIUM
CVSS
5.5
EPSS
0.87%

Original NVD Description

The HintFile function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.