How severe is CVE-2018-16286?

CVE-2018-16286 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-16286 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16286?

CVE-2018-16286 affects Lg Supersign Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16286?

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

When was CVE-2018-16286 published?

CVE-2018-16286 was published on 2018-09-14 and last updated on 2026-06-17.

CVE-2018-16286

CVE-2018-16286 is a critical-severity vulnerability in Lg Supersign Cms with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Lg Supersign Cms
Published: 2018-09-14
Last modified: 2026-06-17

Description

LG SuperSign CMS allows authentication bypass because the CAPTCHA requirement is skipped if a captcha:pass cookie is sent, and because the PIN is limited to four digits.

Frequently asked questions

What is CVE-2018-16286?: LG SuperSign CMS allows authentication bypass because the CAPTCHA requirement is skipped if a captcha:pass cookie is sent, and because the PIN is limited to four digits.
How severe is CVE-2018-16286?: CVE-2018-16286 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-16286 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16286?: CVE-2018-16286 affects Lg Supersign Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16286?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-16286 published?: CVE-2018-16286 was published on 2018-09-14 and last updated on 2026-06-17.

References

http://mamaquieroserpentester.blogspot.com/2018/09/multiple-vulnerabilities-in-lg.html

Affected products (1)

cpe:2.3:a:lg:supersign_cms:-:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
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Browse all CWE-287 (Improper Authentication) vulnerabilities →