How severe is CVE-2020-4903?

CVE-2020-4903 has a CVSS 3.x base score of 6.5, 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 low, and availability none.

Is CVE-2020-4903 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-2020-4903?

CVE-2020-4903 affects Ibm Api Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-4903?

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

When was CVE-2020-4903 published?

CVE-2020-4903 was published on 2021-03-08 and last updated on 2026-06-17.

CVE-2020-4903

CVE-2020-4903 is a medium-severity vulnerability in Ibm Api Connect with a CVSS 3.x base score of 6.5. 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 6.5)
CVSS v2: 6.4
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Api Connect
Published: 2021-03-08
Last modified: 2026-06-17

Description

IBM API Connect V10 and V2018 could allow an attacker who has intercepted a registration invitation link to impersonate the registered user or obtain sensitive information. IBM X-Force ID: 191105.

Frequently asked questions

What is CVE-2020-4903?: IBM API Connect V10 and V2018 could allow an attacker who has intercepted a registration invitation link to impersonate the registered user or obtain sensitive information. IBM X-Force ID: 191105.
How severe is CVE-2020-4903?: CVE-2020-4903 has a CVSS 3.x base score of 6.5, 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 low, and availability none.
Is CVE-2020-4903 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-2020-4903?: CVE-2020-4903 affects Ibm Api Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-4903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4903 published?: CVE-2020-4903 was published on 2021-03-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:api_connect:*:*:*:*:*:*:*:*

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