CVE-2009-4873 is a critical stack-based buffer overflow vulnerability affecting the HTTP server in Rhino Software Serv-U Web Client version 9.0.0.5. This flaw allows unauthenticated remote attackers to trigger a denial of service (server crash) or execute arbitrary code by sending a specially crafted, long Session cookie. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code is available on ExploitDB, indicating a high potential for exploitation. Despite its severity, there is no evidence of active exploitation, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.0.0.5CPE matchmatch criteria | cpe:2.3:a:rhinosoft:serv-u:9.0.0.5:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.