How severe is CVE-2018-7505?

CVE-2018-7505 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-2018-7505 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7505?

CVE-2018-7505 primarily affects Advantech Webaccess. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-7505?

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-2018-7505 published?

CVE-2018-7505 was published on 2018-05-15 and last updated on 2026-06-17.

CVE-2018-7505

CVE-2018-7505 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Advantech Webaccess
Published: 2018-05-15
Last modified: 2026-06-17

Description

In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, a TFTP application has unrestricted file uploads to the web application without authorization, which may allow an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2018-7505?: In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, a TFTP application has unrestricted file uploads to the web application without authorization, which may allow an attacker to execute arbitrary code.
How severe is CVE-2018-7505?: CVE-2018-7505 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-2018-7505 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7505?: CVE-2018-7505 primarily affects Advantech Webaccess. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-7505?: 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-2018-7505 published?: CVE-2018-7505 was published on 2018-05-15 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*
cpe:2.3:a:advantech:webaccess_dashboard:*:*:*:*:*:*:*:*
cpe:2.3:a:advantech:webaccess_scada:*:*:*:*:*:*:*:*
cpe:2.3:a:advantech:webaccess\/nms:*:*:*:*:*:*:*:*

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