Medium severity · published Oct 5, 2016
CVE-2016-6421
Cisco IOS XR 5.2.2 allows remote attackers to cause a denial of service (process restart) via a crafted OSPF Link State Advertisement (LSA) update, aka Bug ID CSCvb05643
5.3
CVSS
1.6%
EPSS
No
On KEV
Description
Cisco IOS XR 5.2.2 allows remote attackers to cause a denial of service (process restart) via a crafted OSPF Link State Advertisement (LSA) update, aka Bug ID CSCvb05643.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IX
Ios XR · Cisco
5.2.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6421
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6421
Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-ospf
www.securityfocus.com
http://www.securityfocus.com/bid/93212
www.securitytracker.com
http://www.securitytracker.com/id/1036909
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