CVE-2021-42390

MEDIUM · CVSS 6.5 EPSS 1.26%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-14 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE

CVE-2021-42390

Severity

MEDIUM

CVSS

6.5

EPSS

1.26%

Original NVD Description

Divide-by-zero in Clickhouse's DeltaDouble compression codec when parsing a malicious query. The first byte of the compressed buffer is used in a modulo operation without being checked for 0.