SEPTEMBER 18, 2026
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Case File

CVE-2020-37239

CRITICAL · CVSS 9.8 EPSS 0.46% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-16 · 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.

Public Exploit Signal

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

Detected Signals
exploit code execution
External Security References

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

CVE
CVE-2020-37239
Severity
CRITICAL
CVSS
9.8
EPSS
0.46%

Original NVD Description

libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.