How severe is CVE-2021-39028?

CVE-2021-39028 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-39028 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39028?

CVE-2021-39028 primarily affects Ibm Engineering Lifecycle Optimization - Publishing. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-39028?

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

When was CVE-2021-39028 published?

CVE-2021-39028 was published on 2022-07-14 and last updated on 2026-06-17.

CVE-2021-39028

CVE-2021-39028 is a medium-severity vulnerability in Ibm Engineering Lifecycle Optimization - Publishing with a CVSS 3.x base score of 5.4. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Ibm Engineering Lifecycle Optimization - Publishing
Published: 2022-07-14
Last modified: 2026-06-17

Description

IBM Engineering Lifecycle Optimization - Publishing 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 213866.

Frequently asked questions

What is CVE-2021-39028?: IBM Engineering Lifecycle Optimization - Publishing 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 213866.
How severe is CVE-2021-39028?: CVE-2021-39028 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-39028 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39028?: CVE-2021-39028 primarily affects Ibm Engineering Lifecycle Optimization - Publishing. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-39028?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39028 published?: CVE-2021-39028 was published on 2022-07-14 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_publishing:6.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_publishing:6.0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_publishing:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_optimization_publishing:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:engineering_lifecycle_optimization_publishing:7.0.2:*:*:*:*:*:*:*

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