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Case File

CVE-2021-39520

MEDIUM · CVSS 6.5 EPSS 0.87% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-20 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

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-2021-39520
Severity
MEDIUM
CVSS
6.5
EPSS
0.87%

Original NVD Description

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PushReconstructedData() located in blockbitmaprequester.cpp. It allows an attacker to cause Denial of Service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)