How severe is CVE-2018-18590?

CVE-2018-18590 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-18590 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18590?

CVE-2018-18590 primarily affects Microfocus Operations Bridge. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18590?

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-2018-18590 published?

CVE-2018-18590 was published on 2018-11-07 and last updated on 2026-06-17.

CVE-2018-18590

CVE-2018-18590 is a critical-severity vulnerability in Microfocus Operations Bridge with a CVSS 3.x base score of 9.6. 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-200.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v2: 5.8
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Microfocus Operations Bridge
Published: 2018-11-07
Last modified: 2026-06-17

Description

A potential remote code execution and information disclosure vulnerability exists in Micro Focus Operations Bridge containerized suite versions 2017.11, 2018.02, 2018.05, 2018.08. This vulnerability could allow for information disclosure.

Frequently asked questions

What is CVE-2018-18590?: A potential remote code execution and information disclosure vulnerability exists in Micro Focus Operations Bridge containerized suite versions 2017.11, 2018.02, 2018.05, 2018.08. This vulnerability could allow for information disclosure.
How severe is CVE-2018-18590?: CVE-2018-18590 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-18590 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18590?: CVE-2018-18590 primarily affects Microfocus Operations Bridge. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18590?: 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-2018-18590 published?: CVE-2018-18590 was published on 2018-11-07 and last updated on 2026-06-17.

References

https://softwaresupport.softwaregrp.com/document/-/facetsearch/document/KM03283416

Affected products (4)

cpe:2.3:a:microfocus:operations_bridge:2017.11:*:*:*:premium:*:*:*
cpe:2.3:a:microfocus:operations_bridge:2018.02:*:*:*:premium:*:*:*
cpe:2.3:a:microfocus:operations_bridge:2018.05:*:*:*:premium:*:*:*
cpe:2.3:a:microfocus:operations_bridge:2018.08:*:*:*:*:*:*:*

More vulnerabilities in Microfocus Operations Bridge

CVE-2021-38125 — Critical (CVSS 9.8): Unauthenticated remote code execution in Micro Focus Operations Bridge containerized, affecting versions 2021.05,…
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