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Medium severity6.7NVD Advisory· Published Jun 3, 2020· Updated Jun 17, 2026

CVE-2020-3207

CVE-2020-3207

Description

A vulnerability in the processing of boot options of specific Cisco IOS XE Software switches could allow an authenticated, local attacker with root shell access to the underlying operating system (OS) to conduct a command injection attack during device boot. This vulnerability is due to insufficient input validation checks while processing boot options. An attacker could exploit this vulnerability by modifying device boot options to execute attacker-provided code. A successful exploit may allow an attacker to bypass the Secure Boot process and execute malicious code on an affected device with root-level privileges.

AI Insight

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

Affected products

21
  • Cisco Systems, Inc./iOS Xe19 versions
    cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*+ 18 more
    • cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.2:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.2a:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.2s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.3:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.3a:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.3h:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.3s:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:ios_xe:16.9.4:*:*:*:*:*:*:*
  • Cisco Systems, Inc./IOS and IOS XE Softwarellm-fuzzy
  • Cisco Systems, Inc./IOS XE Software for Cisco Merakicpe-rescue
    Range: n/a

Patches

Vulnerability mechanics

References

1

News mentions

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