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Case File

CVE-2021-33582

HIGH · CVSS 7.5 EPSS 3.07% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-01 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

GitHub PoC Links
github.com ↗ github.com ↗

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

CVE
CVE-2021-33582
Severity
HIGH
CVSS
7.5
EPSS
3.07%

Original NVD Description

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service (multiple-minute daemon hang) via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16.