Back

CVE-2016-6441

CRITICAL

A vulnerability in the Transaction Language 1 (TL1) code of Cisco ASR 900 Series routers could allow an unauthenticated, remote attacker to cause a reload of, or remotely execute code on, the affected system. This vulnerability affects Cisco ASR 900 Series Aggregation Services Routers (ASR902, ASR903, and ASR907) that are running the following releases of Cisco IOS XE Software: 3.17.0S 3.17.1S 3.17.2S 3.18.0S 3.18.1S. More Information: CSCuy15175. Known Affected Releases: 15.6(1)S 15.6(2)S. Known Fixed Releases: 15.6(1)S2.12 15.6(1.17)S0.41 15.6(1.17)SP 15.6(2)SP 16.4(0.183) 16.5(0.10).

Published: Nov 3, 2016 Modified: Jun 17, 2026
CWE-119

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (7)

Vendor Product Version
cisco ios_xe 3.17.0s
cisco ios_xe 3.17.1s
cisco ios_xe 3.17.2s
cisco ios_xe 3.17s
cisco ios_xe 3.18.0s
cisco ios_xe 3.18.1s
cisco ios_xe 3.18s

GitHub Security Advisory GHSA-g5ff-5f8x-677m

A vulnerability in the Transaction Language 1 (TL1) code of Cisco ASR 900 Series routers could...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 4.90%

Top 9% most likely to be exploited

Threat Score 40.7 / 100

Data Sources

NVD EPSS GitHub