How severe is CVE-2021-20478?

CVE-2021-20478 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-20478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20478?

CVE-2021-20478 affects Ibm Cloud Pak System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-20478 published?

CVE-2021-20478 was published on 2021-07-20 and last updated on 2026-06-17.

CVE-2021-20478

CVE-2021-20478 is a low-severity vulnerability in Ibm Cloud Pak System with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 2.1
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Cloud Pak System
Published: 2021-07-20
Last modified: 2026-06-17

Description

IBM Cloud Pak System 2.3 could allow a local user in some situations to view the artifacts of another user in self service console. IBM X-Force ID: 197497.

Frequently asked questions

What is CVE-2021-20478?: IBM Cloud Pak System 2.3 could allow a local user in some situations to view the artifacts of another user in self service console. IBM X-Force ID: 197497.
How severe is CVE-2021-20478?: CVE-2021-20478 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-20478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20478?: CVE-2021-20478 affects Ibm Cloud Pak System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20478 published?: CVE-2021-20478 was published on 2021-07-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:cloud_pak_system:2.3:*:*:*:*:*:*:*

More vulnerabilities in Ibm Cloud Pak System

CVE-2019-4521 — Critical (CVSS 9.8): Platform System Manager in IBM Cloud Pak System 2.3 is potentially vulnerable to CVS Injection. A remote attacker could…
CVE-2020-4917 — High (CVSS 8.8): IBM Cloud Pak System 2.3 is vulnerable to cross-site request forgery which could allow an attacker to execute malicious…
CVE-2019-4130 — High (CVSS 8.8): IBM Cloud Pak System 2.3 and 2.3.0.1 could allow a remote attacker to upload arbitrary files, which could allow the…
CVE-2023-38273 — High (CVSS 7.5): IBM Cloud Pak System 2.3.1.1, 2.3.2.0, and 2.3.3.7 uses an inadequate account lockout setting that could allow a remote…
CVE-2021-20479 — High (CVSS 7.5): IBM Cloud Pak System 2.3.0 through 2.3.3.3 Interim Fix 1 uses weaker than expected cryptographic algorithms that could…
CVE-2020-4912 — High (CVSS 7.2): IBM Cloud Pak System 2.3 Self Service Console could allow a privilege escalation by capturing the user request URL when…

All CVEs affecting Ibm Cloud Pak System →