RCE in Vizio E50x-E1
CVE-2021-27944
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 access controls, allowing an unauthenticated threat actor to access privileged functionality, leading to OS command execution. The specific attack methodology is a file upload.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.035 (88.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Vizio E50x-E1
- Vizio E50x-E1 Firmware — versions 10.0.31.4-2
- Vizio P65-F1
- Vizio P65-F1 Firmware — versions 6.0.31.4-2
Weakness classification (CWE)
References
- www.vizio.com (Product)
- www.l9group.com/advisories/vizio-tv-unauthenticated-remote-code-execution (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27944?
- CVE-2021-27944 is a critical-severity vulnerability in Vizio E50x-E1, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-08-26.
- How severe is CVE-2021-27944?
- Critical severity. CVSS v3 base score is 9.8 out of 10.