CVE-2012-4620
Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via tunneled (1) GRE/IP, (2) IPIP, or (3) IPv6 in IPv4 packets, aka Bug ID…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via tunneled (1) GRE/IP, (2) IPIP, or (3) IPv6 in IPv4 packets, aka Bug ID CSCts66808.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 2.75% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- cisco/10008 router · cisco/ios
- Source
- psirt@cisco.com
References
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120926-c10k-tunnelsVendor Advisory
- http://www.securityfocus.com/bid/55696
- http://www.securitytracker.com/id?1027578
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78883
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120926-c10k-tunnelsVendor Advisory
- http://www.securityfocus.com/bid/55696
- http://www.securitytracker.com/id?1027578
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78883
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.