CVE-2016-1453

critical

Published 2016-10-06 · Modified 2026-05-06

CVSS v3

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2

10.0

VIR risk

9.8

Description

Buffer overflow in the Overlay Transport Virtualization (OTV) GRE feature in Cisco NX-OS 5.0 through 7.3 on Nexus 7000 and 7700 devices allows remote attackers to execute arbitrary code via long parameters in a packet header, aka Bug ID CSCuy95701.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: psirt@cisco.com — http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-otv

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-otv
http://www.securityfocus.com/bid/93409
http://www.securitytracker.com/id/1036946
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-otv
http://www.securityfocus.com/bid/93409
http://www.securitytracker.com/id/1036946

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.