How severe is CVE-2018-16668?

CVE-2018-16668 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-2018-16668 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16668?

CVE-2018-16668 affects Circontrol Circarlife Scada. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16668?

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

When was CVE-2018-16668 published?

CVE-2018-16668 was published on 2018-09-18 and last updated on 2026-06-17.

CVE-2018-16668

CVE-2018-16668 is a medium-severity vulnerability in Circontrol Circarlife Scada 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Circontrol Circarlife Scada
Published: 2018-09-18
Last modified: 2026-06-17

Description

An issue was discovered in CIRCONTROL CirCarLife before 4.3. There is internal installation path disclosure due to the lack of authentication for /html/repository.

Frequently asked questions

What is CVE-2018-16668?: An issue was discovered in CIRCONTROL CirCarLife before 4.3. There is internal installation path disclosure due to the lack of authentication for /html/repository.
How severe is CVE-2018-16668?: CVE-2018-16668 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-2018-16668 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16668?: CVE-2018-16668 affects Circontrol Circarlife Scada. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16668?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-16668 published?: CVE-2018-16668 was published on 2018-09-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:circontrol:circarlife_scada:*:*:*:*:*:*:*:*

More vulnerabilities in Circontrol Circarlife Scada

CVE-2018-12634 — Critical (CVSS 9.8): CirCarLife Scada before 4.3 allows remote attackers to obtain sensitive information via a direct request for the…
CVE-2018-16672 — Medium (CVSS 6.5): An issue was discovered in CIRCONTROL CirCarLife before 4.3. Due to the storage of multiple sensitive information…
CVE-2018-16671 — Medium (CVSS 5.3): An issue was discovered in CIRCONTROL CirCarLife before 4.3. There is system software information disclosure due to…
CVE-2018-16670 — Medium (CVSS 5.3): An issue was discovered in CIRCONTROL CirCarLife before 4.3. There is PLC status disclosure due to lack of…

All CVEs affecting Circontrol Circarlife Scada →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →