How severe is CVE-2021-39090?

CVE-2021-39090 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-39090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39090?

CVE-2021-39090 affects Ibm Cloud Pak For Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-39090?

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

Does CVE-2021-39090 have an EU (EUVD) identifier?

Yes. CVE-2021-39090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-25527.

When was CVE-2021-39090 published?

CVE-2021-39090 was published on 2024-02-29 and last updated on 2026-06-17.

CVE-2021-39090

CVE-2021-39090 is a medium-severity vulnerability in Ibm Cloud Pak For Security with a CVSS 3.x base score of 5.9. 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-319.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-25527
Weakness: CWE-319
Affected product: Ibm Cloud Pak For Security
Published: 2024-02-29
Last modified: 2026-06-17

Description

IBM Cloud Pak for Security (CP4S) 1.10.0.0 through 1.10.6.0 could allow a remote attacker to obtain sensitive information, caused by the failure to properly enable HTTP Strict Transport Security. An attacker could exploit this vulnerability to obtain sensitive information using man in the middle techniques. IBM X-Force ID: 216388.

Frequently asked questions

What is CVE-2021-39090?: IBM Cloud Pak for Security (CP4S) 1.10.0.0 through 1.10.6.0 could allow a remote attacker to obtain sensitive information, caused by the failure to properly enable HTTP Strict Transport Security. An attacker could exploit this vulnerability to obtain sensitive information using man in the middle techniques. IBM X-Force ID: 216388.
How severe is CVE-2021-39090?: CVE-2021-39090 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-39090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39090?: CVE-2021-39090 affects Ibm Cloud Pak For Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-39090?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-39090 have an EU (EUVD) identifier?: Yes. CVE-2021-39090 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-25527.
When was CVE-2021-39090 published?: CVE-2021-39090 was published on 2024-02-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:cloud_pak_for_security:*:*:*:*:*:*:*:*

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