How severe is CVE-2020-4646?

CVE-2020-4646 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-4646 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4646?

CVE-2020-4646 affects Ibm Sterling B2b Integrator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4646?

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

When was CVE-2020-4646 published?

CVE-2020-4646 was published on 2021-05-19 and last updated on 2026-06-17.

CVE-2020-4646

CVE-2020-4646 is a medium-severity vulnerability in Ibm Sterling B2b Integrator with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Sterling B2b Integrator
Published: 2021-05-19
Last modified: 2026-06-17

Description

IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5, 6.0.0.0 through 6.0.3.3, and 6.1.0.0 through 6.1.0.2 could allow an authenticated user to view pages they shoiuld not have access to due to improper authorization control.

Frequently asked questions

What is CVE-2020-4646?: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5, 6.0.0.0 through 6.0.3.3, and 6.1.0.0 through 6.1.0.2 could allow an authenticated user to view pages they shoiuld not have access to due to improper authorization control.
How severe is CVE-2020-4646?: CVE-2020-4646 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-4646 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4646?: CVE-2020-4646 affects Ibm Sterling B2b Integrator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4646?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4646 published?: CVE-2020-4646 was published on 2021-05-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:standard:*:*:*

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