How severe is CVE-2018-14806?

CVE-2018-14806 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-2018-14806 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14806?

CVE-2018-14806 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14806?

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-2018-14806 published?

CVE-2018-14806 was published on 2018-10-23 and last updated on 2026-06-17.

CVE-2018-14806

CVE-2018-14806 is a critical-severity vulnerability in Advantech Webaccess with a CVSS 3.x base score of 9.8. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Advantech Webaccess
Published: 2018-10-23
Last modified: 2026-06-17

Description

Advantech WebAccess 8.3.1 and earlier has a path traversal vulnerability which may allow an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2018-14806?: Advantech WebAccess 8.3.1 and earlier has a path traversal vulnerability which may allow an attacker to execute arbitrary code.
How severe is CVE-2018-14806?: CVE-2018-14806 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-2018-14806 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14806?: CVE-2018-14806 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14806?: 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-2018-14806 published?: CVE-2018-14806 was published on 2018-10-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*

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