CVE-2016-6441: A vulnerability in the Transaction Language 1 (TL1) code of Cisco ASR 900 Series routers could allow an una...

Security readout for executives and security teams

CVE-2016-6441 affects specific Cisco ASR 900 Series routers. An unauthenticated remote attacker could trigger a device reload or potentially execute code. For networks using affected ASR902, ASR903, or ASR907 routers, this is infrastructure-impacting and should be treated as urgent if vulnerable IOS XE releases remain deployed. Exposure is likely limited to organizations operating Cisco ASR902, ASR903, or ASR907 routers on the named IOS XE releases. The provided sources do not specify whether TL1 is enabled by default or what network reachability conditions are required. High priority for organizations with affected ASR 900 routers. The potential business impact includes network outage and possible device compromise, but urgency depends on confirmed model, software version, and management-plane exposure. Mitigation focus: Upgrade affected ASR 900 routers to a Cisco-listed fixed release.; Check Cisco advisory CSCuy15175 for complete vendor remediation guidance.; Restrict management-plane reachability from untrusted networks..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.