HIGH · 7.5

CVE-2016-6381

Cisco IOS 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.18 and 16.1 allow remote attackers to cause a denial of service (memory consumption or device reload) via fragmented IKEv1 packets, aka Bu...

Vulnerability Description

Cisco IOS 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.18 and 16.1 allow remote attackers to cause a denial of service (memory consumption or device reload) via fragmented IKEv1 packets, aka Bug ID CSCuy47382.

CVSS Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
CiscoIos12.4\(15\)t7
CiscoIos Xe3.1.0s
CiscoIos Xe 16.116.1.2
CiscoIos Xe 3.3Sg3.3.0sg
CiscoIos Xe 3.3Xo3.3.0xo
CiscoIos Xe 3.4Sg3.4.0sg

Related Weaknesses (CWE)

References

FAQ

What is CVE-2016-6381?

CVE-2016-6381 is a vulnerability with a CVSS score of 7.5 (HIGH). Cisco IOS 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.18 and 16.1 allow remote attackers to cause a denial of service (memory consumption or device reload) via fragmented IKEv1 packets, aka Bu...

How severe is CVE-2016-6381?

CVE-2016-6381 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-6381?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios, Cisco Ios Xe, Cisco Ios Xe 16.1, Cisco Ios Xe 3.3Sg, Cisco Ios Xe 3.3Xo.