How severe is CVE-2018-17173?

CVE-2018-17173 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-2018-17173 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17173?

CVE-2018-17173 affects Lg Supersign Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17173?

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-2018-17173 published?

CVE-2018-17173 was published on 2018-09-21 and last updated on 2026-06-17.

CVE-2018-17173

CVE-2018-17173 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 56% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 56% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Lg Supersign Cms
Published: 2018-09-21
Last modified: 2026-06-17

Description

LG SuperSign CMS allows remote attackers to execute arbitrary code via the sourceUri parameter to qsr_server/device/getThumbnail.

Frequently asked questions

What is CVE-2018-17173?: LG SuperSign CMS allows remote attackers to execute arbitrary code via the sourceUri parameter to qsr_server/device/getThumbnail.
How severe is CVE-2018-17173?: CVE-2018-17173 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-2018-17173 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17173?: CVE-2018-17173 affects Lg Supersign Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17173?: 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-2018-17173 published?: CVE-2018-17173 was published on 2018-09-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lg:supersign_cms:2.5:*:*:*:*:*:*:*

More vulnerabilities in Lg Supersign Cms

CVE-2018-16287 — Critical (CVSS 9.8): LG SuperSign CMS allows file upload via signEzUI/playlist/edit/upload/..%2f URIs.
CVE-2018-16286 — Critical (CVSS 9.8): LG SuperSign CMS allows authentication bypass because the CAPTCHA requirement is skipped if a captcha:pass cookie is…
CVE-2018-16288 — High (CVSS 8.6): LG SuperSign CMS allows reading of arbitrary files via signEzUI/playlist/edit/upload/..%2f URIs.
CVE-2018-16706 — High (CVSS 7.5): LG SuperSign CMS allows TVs to be rebooted remotely without authentication via a direct HTTP request to…
CVE-2024-6179 — Medium (CVSS 6.1): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LG Electronics…
CVE-2024-6178 — Medium (CVSS 6.1): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LG Electronics…

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