How severe is CVE-2020-4875?

CVE-2020-4875 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.

Is CVE-2020-4875 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4875?

CVE-2020-4875 primarily affects Ibm Cognos Controller. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4875?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-4875 published?

CVE-2020-4875 was published on 2022-01-21 and last updated on 2026-06-17.

CVE-2020-4875

CVE-2020-4875 is a high-severity vulnerability in Ibm Cognos Controller with a CVSS 3.x base score of 8.2. 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: High (CVSS 3.x base score 8.2)
CVSS v2: 6.4
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Ibm Cognos Controller
Published: 2022-01-21
Last modified: 2026-06-17

Description

IBM Cognos Controller 10.4.0, 10.4.1, and 10.4.2 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 190838.

Frequently asked questions

What is CVE-2020-4875?: IBM Cognos Controller 10.4.0, 10.4.1, and 10.4.2 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 190838.
How severe is CVE-2020-4875?: CVE-2020-4875 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability low.
Is CVE-2020-4875 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4875?: CVE-2020-4875 primarily affects Ibm Cognos Controller. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4875?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-4875 published?: CVE-2020-4875 was published on 2022-01-21 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:ibm:cognos_controller:10.4.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:cognos_controller:10.4.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:cognos_controller:10.4.2:*:*:*:*:*:*:*

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Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

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CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
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