CVE-2009-4893 describes a buffer overflow vulnerability in UnrealIRCd versions 3.2beta11 through 3.2.8, specifically when the allow::options::noident setting is enabled. This flaw allows remote attackers to trigger a denial of service (crash) and potentially execute arbitrary code. With a CVSS score of 6.8, it is considered a medium-severity vulnerability, requiring moderate attack complexity but allowing unauthenticated network access to achieve partial impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.2CPE matchmatch criteria | cpe:2.3:a:unrealircd:unrealircd:3.2:beta11:*:*:*:*:*:* | ||
3.2.1CPE matchmatch criteria | cpe:2.3:a:unrealircd:unrealircd:3.2.1:*:*:*:*:*:*:* | ||
3.2.1CPE matchmatch criteria | cpe:2.3:a:unrealircd:unrealircd:3.2.1:pre1:*:*:*:*:*:* | ||
3.2.1CPE matchmatch criteria | cpe:2.3:a:unrealircd:unrealircd:3.2.1:pre2:*:*:*:*:*:* | ||
3.2.2CPE matchmatch criteria | cpe:2.3:a:unrealircd:unrealircd:3.2.2:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.