How severe is CVE-2018-16946?

CVE-2018-16946 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-16946 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16946?

CVE-2018-16946 primarily affects Lg Lnb5110 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-16946?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-16946 published?

CVE-2018-16946 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2018-16946

CVE-2018-16946 is a high-severity vulnerability in Lg Lnb5110 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-552.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Lg Lnb5110 Firmware
Published: 2018-09-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2018-16946?: 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.
How severe is CVE-2018-16946?: CVE-2018-16946 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-16946 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16946?: CVE-2018-16946 primarily affects Lg Lnb5110 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-16946?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-16946 published?: CVE-2018-16946 was published on 2018-09-12 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:lg:lnb5110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnb5320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnb5320r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnb7210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnd3230r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnd5110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnd5110r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnd5220r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnd7210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnd7210r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnu3230r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnu5110r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnu5320r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnu7210r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnv5110r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnv5320r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnv7210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lg:lnv7210r_firmware:*:*:*:*:*:*:*:*

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