PatchTheCVECVE-2021-27942: Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs allow a threat actor to execute arbitrary code from
CVE-2021-27942 is a medium-severity flaw (CVSS 6.8) affecting p65-f1 firmware, e50x-e1 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs allow a threat actor to execute arbitrary code from a USB drive via the Smart Cast functionality, because files on the USB drive are effectively under the web root and can be executed.
Why this priority
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.8 (Medium) |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 61%) |
| CISA exploited list | No |
| Published | 2021-08-03 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · 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-2021-27942?
p65-f1 firmware: mitigate or apply the listed mitigation; e50x-e1 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2021-27942 being exploited?
CVE-2021-27942 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-2021-27942 affect?
CVE-2021-27942 affects p65-f1 firmware, e50x-e1 firmware. Severity is medium (CVSS 6.8). Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs allow a threat actor to execute arbitrary code from a USB drive via the Smart Cast functionality, because files on the USB drive are effectively under the web root and can be execute
How urgent is CVE-2021-27942?
Priority 39/100. Public exploit reference
Related CVEs
- CVE-2021-27944 CRITICAL 9.8 MITIGATE MITIGATE Several high privileged APIs on the Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs do not enforce a
- CVE-2021-27943 HIGH 7.5 MITIGATE MITIGATE The pairing procedure used by the Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs and mobile applica