What’s Vulnerable › Vulnerabilities

CVE-2009-4893

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2010-06-15 · updated 2026-06-16
• Weakness: CWE-119

Description

Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Affected products

• UnrealIRCd: 3.2-beta11, 3.2.1, 3.2.1-pre1, 3.2.1-pre2, 3.2.2, 3.2.2-pre1 (+25)

References

• http://security.gentoo.org/glsa/glsa-201006-21.xml
• http://www.openwall.com/lists/oss-security/2010/06/14/13
• http://www.securityfocus.com/bid/42077
• http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt
• http://security.gentoo.org/glsa/glsa-201006-21.xml
• http://www.openwall.com/lists/oss-security/2010/06/14/13
• http://www.securityfocus.com/bid/42077
• http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt

Get alerted when CVE-2009-4893 or the next vulnerability affects your stack