SEPTEMBER 21, 2026
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Case File

CVE-2002-0639

CRITICAL · CVSS 9.8 EPSS 18.43%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2002-07-03 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Its EPSS score suggests a 18.4% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2002-0639
Severity
CRITICAL
CVSS
9.8
EPSS
18.43%

Original NVD Description

Integer overflow in sshd in OpenSSH 2.9.9 through 3.3 allows remote attackers to execute arbitrary code during challenge response authentication (ChallengeResponseAuthentication) when OpenSSH is using SKEY or BSD_AUTH authentication.