How severe is CVE-2017-20237?

CVE-2017-20237 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-2017-20237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2017-20237?

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.

Does CVE-2017-20237 have an EU (EUVD) identifier?

Yes. CVE-2017-20237 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18953.

When was CVE-2017-20237 published?

CVE-2017-20237 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2017-20237

CVE-2017-20237 is a critical-severity vulnerability 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2017-18953
Weakness: CWE-287
Published: 2026-04-03
Last modified: 2026-06-17

Description

Hirschmann Industrial HiVision versions prior to 06.0.07 and 07.0.03 contains an authentication bypass vulnerability in the master service that allows unauthenticated remote attackers to execute arbitrary commands with administrative privileges. Attackers can invoke exposed interface methods over the remote service to bypass authentication and achieve remote code execution on the underlying operating system.

Frequently asked questions

What is CVE-2017-20237?: Hirschmann Industrial HiVision versions prior to 06.0.07 and 07.0.03 contains an authentication bypass vulnerability in the master service that allows unauthenticated remote attackers to execute arbitrary commands with administrative privileges. Attackers can invoke exposed interface methods over the remote service to bypass authentication and achieve remote code execution on the underlying operating system.
How severe is CVE-2017-20237?: CVE-2017-20237 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-2017-20237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2017-20237?: 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.
Does CVE-2017-20237 have an EU (EUVD) identifier?: Yes. CVE-2017-20237 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18953.
When was CVE-2017-20237 published?: CVE-2017-20237 was published on 2026-04-03 and last updated on 2026-06-17.

References

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 →