High severity8.1NVD Advisory· Published Jun 4, 2021· Updated Jun 17, 2026

CVE-2021-1540

Description

Multiple vulnerabilities in the authorization process of Cisco ASR 5000 Series Software (StarOS) could allow an authenticated, remote attacker to bypass authorization and execute a subset of CLI commands on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Asr 5000 Series Softwarellm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: n/a
Cisco Systems, Inc./Starosllm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*range: <21.16.9
Cisco Systems, Inc./Virtualized Packet Core
cpe:2.3:a:cisco:virtualized_packet_core:-:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr5k-autho-bypass-mJDF5S7nnvdVendor Advisory

News mentions

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