PatchTheCVECVE-2021-1432: A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to exe
CVE-2021-1432 is a high-severity flaw (CVSS 7.3) affecting ios xe, ios xe sd-wan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user. The attacker must be authenticated on the affected device as a low-privileged user to exploit this vulnerability. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by injecting arbitrary comm
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-1432?
ios xe: mitigate or apply the listed mitigation; ios xe sd-wan: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2021-1432 being exploited?
CVE-2021-1432 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-1432 affect?
CVE-2021-1432 affects ios xe, ios xe sd-wan. Severity is high (CVSS 7.3). A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user. The attacker must be authenticated on the affected de
How urgent is CVE-2021-1432?
Priority 33/100. High severity
Software pages
iOS vulnerabilities · Cisco IOS XE vulnerabilities · Cisco vulnerabilities
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