How severe is CVE-2018-16660?

CVE-2018-16660 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-16660 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16660?

CVE-2018-16660 primarily affects Imperva Securesphere. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-16660?

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-2018-16660 published?

CVE-2018-16660 was published on 2019-04-25 and last updated on 2026-06-17.

CVE-2018-16660

CVE-2018-16660 is a high-severity vulnerability in Imperva Securesphere with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Imperva Securesphere
Published: 2019-04-25
Last modified: 2026-06-17

Description

A command injection vulnerability in PWS in Imperva SecureSphere 13.0.0.10 and 13.1.0.10 Gateway allows an attacker with authenticated access to execute arbitrary OS commands on a vulnerable installation.

Frequently asked questions

What is CVE-2018-16660?: A command injection vulnerability in PWS in Imperva SecureSphere 13.0.0.10 and 13.1.0.10 Gateway allows an attacker with authenticated access to execute arbitrary OS commands on a vulnerable installation.
How severe is CVE-2018-16660?: CVE-2018-16660 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-16660 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16660?: CVE-2018-16660 primarily affects Imperva Securesphere. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-16660?: 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-2018-16660 published?: CVE-2018-16660 was published on 2019-04-25 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:imperva:securesphere:13.0.10:*:*:*:*:*:*:*
cpe:2.3:a:imperva:securesphere:13.1.10:*:*:*:*:*:*:*
cpe:2.3:a:imperva:securesphere:13.2.10:*:*:*:*:*:*:*

More vulnerabilities in Imperva Securesphere

CVE-2018-19646 — Critical (CVSS 9.8): The Python CGI scripts in PWS in Imperva SecureSphere 13.0.10, 13.1.10, and 13.2.10 allow remote attackers to execute…
CVE-2018-5413 — High (CVSS 8.8): Imperva SecureSphere running v13.0, v12.0, or v11.5 allows low privileged users to add SSH login keys to the admin…
CVE-2018-5403 — High (CVSS 8.1): Imperva SecureSphere gateway (GW) running v13, for both pre-First Time Login or post-First Time Login (FTL), if the…
CVE-2018-5412 — High (CVSS 7.8): Imperva SecureSphere running v12.0.0.50 is vulnerable to local arbitrary code execution, escaping sealed-mode.
CVE-2013-4091 — High (CVSS 7.5): The SecureSphere Operations Manager (SOM) Management Server in Imperva SecureSphere 9.0.0.5 does not have an off…
CVE-2013-4095 — Medium (CVSS 6.5): plain/actionsets.html in the SecureSphere Operations Manager (SOM) Management Server in Imperva SecureSphere 9.0.0.5…

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