VULNERABILITY INTELLIGENCE

CVE-2009-5038

CVSS score7.8 HIGH

EPSS probability3.18%

CISA KEVNot currently listed

Published2011-01-07

Last modified2026-06-16

CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C

Description

Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a "corrupted magic value," aka Bug ID CSCso05336.

Weakness classification

CWE-20: Improper Input Validation

Primary references

cve@mitre.org — Release Notes, Vendor Advisory
cve@mitre.org — Third Party Advisory, VDB Entry
cve@mitre.org — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry