How severe is CVE-2020-9351?

CVE-2020-9351 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-9351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9351?

CVE-2020-9351 affects Smartclient. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9351?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-9351 published?

CVE-2020-9351 was published on 2020-02-23 and last updated on 2026-06-17.

CVE-2020-9351

CVE-2020-9351 is a medium-severity vulnerability in Smartclient with a CVSS 3.x base score of 5.3. 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Smartclient
Published: 2020-02-23
Last modified: 2026-06-17

Description

An issue was discovered in SmartClient 12.0. If an unauthenticated attacker makes a POST request to /tools/developerConsoleOperations.jsp or /isomorphic/IDACall with malformed XML data in the _transaction parameter, the server replies with a verbose error showing where the application resides (the absolute path). NOTE: the documentation states "These tools are, by default, available to anyone ... so they should only be deployed into a trusted environment. Alternately, the tools can easily be restricted to administrators or end users by protecting the tools path with normal authentication and authorization mechanisms on the web server."

Frequently asked questions

What is CVE-2020-9351?: An issue was discovered in SmartClient 12.0. If an unauthenticated attacker makes a POST request to /tools/developerConsoleOperations.jsp or /isomorphic/IDACall with malformed XML data in the _transaction parameter, the server replies with a verbose error showing where the application resides (the absolute path). NOTE: the documentation states "These tools are, by default, available to anyone ... so they should only be deployed into a trusted environment. Alternately, the tools can easily be restricted to administrators or end users by protecting the tools path with normal authentication and authorization mechanisms on the web server."
How severe is CVE-2020-9351?: CVE-2020-9351 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-9351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9351?: CVE-2020-9351 affects Smartclient. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9351?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9351 published?: CVE-2020-9351 was published on 2020-02-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:smartclient:smartclient:12.0:*:*:*:*:*:*:*

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CVE-2020-9352 — Critical (CVSS 9.8): An issue was discovered in SmartClient 12.0. Unauthenticated exploitation of blind XXE can occur in the downloadWSDL…
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