How severe is CVE-2017-9957?

CVE-2017-9957 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-2017-9957 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9957?

CVE-2017-9957 affects Schneider-electric U.motion Builder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9957?

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-2017-9957 published?

CVE-2017-9957 was published on 2017-09-26 and last updated on 2026-06-17.

CVE-2017-9957

CVE-2017-9957 is a critical-severity vulnerability in Schneider-electric U.motion Builder 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Schneider-electric U.motion Builder
Published: 2017-09-26
Last modified: 2026-06-17

Description

A vulnerability exists in Schneider Electric's U.motion Builder software versions 1.2.1 and prior in which the web service contains a hidden system account with a hardcoded password. An attacker can use this information to log into the system with high-privilege credentials.

Frequently asked questions

What is CVE-2017-9957?: A vulnerability exists in Schneider Electric's U.motion Builder software versions 1.2.1 and prior in which the web service contains a hidden system account with a hardcoded password. An attacker can use this information to log into the system with high-privilege credentials.
How severe is CVE-2017-9957?: CVE-2017-9957 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-2017-9957 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9957?: CVE-2017-9957 affects Schneider-electric U.motion Builder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9957?: 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-2017-9957 published?: CVE-2017-9957 was published on 2017-09-26 and last updated on 2026-06-17.

References

Affected products (1)

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

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