How severe is CVE-2020-11856?

CVE-2020-11856 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-2020-11856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11856?

CVE-2020-11856 affects Microfocus Operation Bridge Reporter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11856?

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-2020-11856 published?

CVE-2020-11856 was published on 2020-09-22 and last updated on 2026-06-17.

CVE-2020-11856

CVE-2020-11856 is a critical-severity vulnerability in Microfocus Operation Bridge Reporter 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Microfocus Operation Bridge Reporter
Published: 2020-09-22
Last modified: 2026-06-17

Description

Arbitrary code execution vulnerability on Micro Focus Operation Bridge Reporter, affecting version 10.40 and earlier. The vulnerability could allow remote attackers to execute arbitrary code on affected installations of OBR.

Frequently asked questions

What is CVE-2020-11856?: Arbitrary code execution vulnerability on Micro Focus Operation Bridge Reporter, affecting version 10.40 and earlier. The vulnerability could allow remote attackers to execute arbitrary code on affected installations of OBR.
How severe is CVE-2020-11856?: CVE-2020-11856 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-2020-11856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11856?: CVE-2020-11856 affects Microfocus Operation Bridge Reporter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11856?: 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-2020-11856 published?: CVE-2020-11856 was published on 2020-09-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microfocus:operation_bridge_reporter:*:*:*:*:*:*:*:*

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