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Vulnerability record · CVE-2018-16946 · published 12 September 2018

CVE-2018-16946: Lg lnb5110 firmware vulnerability

Lg · Lnb5110 Firmware

LG LNB*, LND*, LNU*, and LNV* smart network camera devices have broken access control. Attackers are able to download /updownload/t.report (aka Log & Report) files and download backup files (via download.php) without authenticating. These backup files contain user credentials and configuration information for the camera device. An attacker is able to discover the backup filename via reading the system logs or report data, or just by brute-forcing the backup filename pattern. It may be possible to authenticate to the admin account with the admin password.

7.5 CVSS 3.0 High EPSS 9.3% · top 4.8% CWE-552 · CWE-552
7.5CVSS 3.0 base score, v2 5.0
9.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
18Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

LG LNB*, LND*, LNU*, and LNV* smart network camera devices have broken access control. Attackers are able to download /updownload/t.report (aka Log & Report) files and download backup files (via download.php) without authenticating. These backup files contain user credentials and configuration information for the camera device. An attacker is able to discover the backup filename via reading the system logs or report data, or just by brute-forcing the backup filename pattern. It may be possible to authenticate to the admin account with the admin password.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

18 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/EgeBalci/LG-Smart-IP-Device-Backup-Download ExploitThird Party Advisory
https://www.exploit-db.com/exploits/45394/ ExploitThird Party AdvisoryVDB Entry
https://github.com/EgeBalci/LG-Smart-IP-Device-Backup-Download ExploitThird Party Advisory
https://www.exploit-db.com/exploits/45394/ ExploitThird Party AdvisoryVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-16946), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.