CVE-2023-6317

Name: CVE-2023-6317
Creator: NVD / NIST
Published: 2024-04-09T14:15:07.683+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2023-6317 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A prompt bypass exists in the secondscreen.gateway service running on webOS version 4 through 7. An attacker can create a privileged account without asking the user for the security PIN. Full versions and TV models affected: webOS 4.9.7 - 5.30.40 running on LG43UM7000PLA webOS 5.5.0 - 04.50.51 running on OLED55CXPUA webOS 6.3.3-442 (kisscurl-kinglake) - 03.36.50 running on OLED48C1PUB webOS 7.3.1-43 (mullet-mebin) - 03.33.85 running on OLED55A23LA . EPSS estimates a 1.08% chance of exploitation in the next 30 days.

Description

A prompt bypass exists in the secondscreen.gateway service running on webOS version 4 through 7. An attacker can create a privileged account without asking the user for the security PIN. Full versions and TV models affected: webOS 4.9.7 - 5.30.40 running on LG43UM7000PLA webOS 5.5.0 - 04.50.51 running on OLED55CXPUA webOS 6.3.3-442 (kisscurl-kinglake) - 03.36.50 running on OLED48C1PUB webOS 7.3.1-43 (mullet-mebin) - 03.33.85 running on OLED55A23LA

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Lg	Webos	4.9.7
Lg	Webos	5.5.0
Lg	Webos	6.3.3-442
Lg	Webos	7.3.1-43

References

https://bitdefender.com/blog/labs/vulnerabilities-identified-in-lg-webos/Exploit, Third Party Advisory
https://lgsecurity.lge.com/bulletins/tv#updateDetailsVendor Advisory
https://bitdefender.com/blog/labs/vulnerabilities-identified-in-lg-webos/Exploit, Third Party Advisory
https://lgsecurity.lge.com/bulletins/tv#updateDetailsVendor Advisory

Timeline

Published: Apr 9, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-6317?

How severe is CVE-2023-6317?

CVE-2023-6317 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6317?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6317?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST