CVE-2021-20540

CVE-2021-20540 is a medium-severity vulnerability in Ibm Cloud Pak For Security with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

IBM Cloud Pak for Security (CP4S) 1.5.0.0, 1.5.1.0, 1.6.0.0, 1.6.1.0, 1.7.0.0, and 1.7.1.0 could disclose sensitive information to an unauthorized user through HTTP GET requests. This information could be used in further attacks against the system. IBM X-Force ID: 198923.

Frequently asked questions

What is CVE-2021-20540?
IBM Cloud Pak for Security (CP4S) 1.5.0.0, 1.5.1.0, 1.6.0.0, 1.6.1.0, 1.7.0.0, and 1.7.1.0 could disclose sensitive information to an unauthorized user through HTTP GET requests. This information could be used in further attacks against the system. IBM X-Force ID: 198923.
How severe is CVE-2021-20540?
CVE-2021-20540 has a CVSS 3.x base score of 5.3, rated medium 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 none.
Is CVE-2021-20540 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20540?
CVE-2021-20540 primarily affects Ibm Cloud Pak For Security. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20540?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20540 published?
CVE-2021-20540 was published on 2021-08-02 and last updated on 2026-06-17.

References

Affected products (6)

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