CVE-2002-0639 describes a critical integer overflow vulnerability in OpenSSH versions 2.9.9 through 3.3. This flaw allows remote attackers to execute arbitrary code on affected systems during challenge-response authentication, specifically when SKEY or BSD_AUTH methods are in use. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered significant community discussion, indicating awareness and potential interest.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.9.9, <= 3.3CPE matchmatch criteria | cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.