How severe is CVE-2018-7771?

CVE-2018-7771 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-7771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7771?

CVE-2018-7771 affects Schneider-electric U.motion Builder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-7771?

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-2018-7771 published?

CVE-2018-7771 was published on 2018-07-03 and last updated on 2026-06-17.

CVE-2018-7771

CVE-2018-7771 is a high-severity vulnerability in Schneider-electric U.motion Builder with a CVSS 3.x base score of 8.0. 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: High (CVSS 3.x base score 8.0)
CVSS v2: 6.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Schneider-electric U.motion Builder
Published: 2018-07-03
Last modified: 2026-06-17

Description

The vulnerability exists within processing of editscript.php in Schneider Electric U.motion Builder software versions prior to v1.3.4. A directory traversal vulnerability allows a caller with standard user privileges to write arbitrary php files anywhere in the web service directory tree.

Frequently asked questions

What is CVE-2018-7771?: The vulnerability exists within processing of editscript.php in Schneider Electric U.motion Builder software versions prior to v1.3.4. A directory traversal vulnerability allows a caller with standard user privileges to write arbitrary php files anywhere in the web service directory tree.
How severe is CVE-2018-7771?: CVE-2018-7771 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-7771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7771?: CVE-2018-7771 affects Schneider-electric U.motion Builder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-7771?: 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-2018-7771 published?: CVE-2018-7771 was published on 2018-07-03 and last updated on 2026-06-17.

References

https://www.schneider-electric.com/en/download/document/SEVD-2018-095-01/

Affected products (1)

cpe:2.3:a:schneider-electric:u.motion_builder:*:*:*:*:*:*:*:*

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