How severe is CVE-2020-11586?

CVE-2020-11586 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-2020-11586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11586?

CVE-2020-11586 affects Cipplanner Cipace. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11586?

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-2020-11586 published?

CVE-2020-11586 was published on 2020-04-06 and last updated on 2026-06-17.

CVE-2020-11586

CVE-2020-11586 is a critical-severity vulnerability in Cipplanner Cipace 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-611.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Cipplanner Cipace
Published: 2020-04-06
Last modified: 2026-06-17

Description

An XXE issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801. An unauthenticated attacker can make an API request that contains malicious XML DTD data.

Frequently asked questions

What is CVE-2020-11586?: An XXE issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801. An unauthenticated attacker can make an API request that contains malicious XML DTD data.
How severe is CVE-2020-11586?: CVE-2020-11586 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-2020-11586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11586?: CVE-2020-11586 affects Cipplanner Cipace. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11586?: 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-2020-11586 published?: CVE-2020-11586 was published on 2020-04-06 and last updated on 2026-06-17.

References

https://www.criticalstart.com/vulnerabilities-discovered-in-cipace-enterprise-platform/

Affected products (1)

cpe:2.3:a:cipplanner:cipace:*:*:*:*:*:*:*:*

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