AUGUST 5, 2026
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Case File

CVE-2021-31870

CRITICAL · CVSS 9.8 EPSS 2.06%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2021-31870
Severity
CRITICAL
CVSS
9.8
EPSS
2.06%

Original NVD Description

An issue was discovered in klibc before 2.0.9. Multiplication in the calloc() function may result in an integer overflow and a subsequent heap buffer overflow.

Related CVEs

Other vulnerabilities affecting the same vendor(s)