CVE-2021-27943

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-08-02 · updated 2026-06-17
Weakness: CWE-307

Description

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 application is vulnerable to a brute-force attack (against only 10000 possibilities), allowing a threat actor to forcefully pair the device, leading to remote control of the TV settings and configurations.

Affected products

Vizio E50X-E1 Firmware: 10.0.31.4-2
Vizio P65-F1 Firmware: 6.0.31.4-2

References

https://www.l9group.com/advisories/vizio-tv-mobile-pairing-is-vulnerable-to-brute-force-attacks
https://www.vizio.com
https://www.l9group.com/advisories/vizio-tv-mobile-pairing-is-vulnerable-to-brute-force-attacks
https://www.vizio.com

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