How severe is CVE-2020-4388?

CVE-2020-4388 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 low, integrity none, and availability high.

Is CVE-2020-4388 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-2020-4388?

CVE-2020-4388 primarily affects Ibm Cognos Analytics. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4388?

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-2020-4388 published?

CVE-2020-4388 was published on 2020-10-12 and last updated on 2026-06-17.

CVE-2020-4388

CVE-2020-4388 is a high-severity vulnerability in Ibm Cognos Analytics 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-755.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 6.4
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Ibm Cognos Analytics
Published: 2020-10-12
Last modified: 2026-06-17

Description

IBM Cognos Analytics 11.0 and 11.1 could be vulnerable to a denial of service attack by failing to catch exceptions in a servlet also exposing debug information could also be used in future attacks. IBM X-Force ID: 179270.

Frequently asked questions

What is CVE-2020-4388?: IBM Cognos Analytics 11.0 and 11.1 could be vulnerable to a denial of service attack by failing to catch exceptions in a servlet also exposing debug information could also be used in future attacks. IBM X-Force ID: 179270.
How severe is CVE-2020-4388?: CVE-2020-4388 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 low, integrity none, and availability high.
Is CVE-2020-4388 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-2020-4388?: CVE-2020-4388 primarily affects Ibm Cognos Analytics. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4388?: 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-2020-4388 published?: CVE-2020-4388 was published on 2020-10-12 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:ibm:cognos_analytics:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:cognos_analytics:11.0.13:-:*:*:*:*:*:*
cpe:2.3:a:ibm:cognos_analytics:11.0.13:fixpack1:*:*:*:*:*:*
cpe:2.3:a:ibm:cognos_analytics:11.0.13:fixpack2:*:*:*:*:*:*

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