VULNERABILITY INTELLIGENCE
CVE-2003-1132
CVSS score5 MEDIUM
EPSS probability2.11%
CISA KEVNot currently listed
Published2003-12-31
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
The DNS server for Cisco Content Service Switch (CSS) 11000 and 11500, when prompted for a nonexistent AAAA record, responds with response code 3 (NXDOMAIN or "Name Error") instead of response code 0 ("No Error"), which allows remote attackers to cause a denial of service (inaccessible domain) by forcing other DNS servers to send and cache a request for a AAAA record to the vulnerable server.
Primary references
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — US Government Resource
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — US Government Resource