AUGUST 4, 2026
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Case File

CVE-2021-40426

HIGH · CVSS 8.8 EPSS 2.21%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-04-14 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It affects Exchange.

CVE
CVE-2021-40426
Severity
HIGH
CVSS
8.8
EPSS
2.21%
Exchange

Original NVD Description

A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox 14.4.2 and master commit 42b3557e. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)