CVE-2013-1121
MEDIUM severity · CVSS 5.4 · CWE-399
5.4CVSS MEDIUM
Summary
The regex engine in the BGP implementation in Cisco NX-OS, when a complex regular expression is configured for inbound routes, allows remote attackers to cause a denial of service (device reload) via a crafted AS path set, aka Bug ID CSCuf49554.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)1%
AV:N/AC:H/Au:N/C:N/I:N/A:C
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.