How severe is CVE-2021-29687?

CVE-2021-29687 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-2021-29687 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29687?

CVE-2021-29687 affects Ibm Security Identity Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29687?

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

When was CVE-2021-29687 published?

CVE-2021-29687 was published on 2021-05-20 and last updated on 2026-06-17.

CVE-2021-29687

CVE-2021-29687 is a medium-severity vulnerability in Ibm Security Identity Manager 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. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Ibm Security Identity Manager
Published: 2021-05-20
Last modified: 2026-06-17

Description

IBM Security Identity Manager 7.0.2 could allow a remote user to enumerate usernames due to a difference of responses from valid and invalid login attempts. IBM X-Force ID: 200018

Frequently asked questions

What is CVE-2021-29687?: IBM Security Identity Manager 7.0.2 could allow a remote user to enumerate usernames due to a difference of responses from valid and invalid login attempts. IBM X-Force ID: 200018
How severe is CVE-2021-29687?: CVE-2021-29687 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-2021-29687 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29687?: CVE-2021-29687 affects Ibm Security Identity Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29687?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-29687 published?: CVE-2021-29687 was published on 2021-05-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:security_identity_manager:6.0.2:*:*:*:*:*:*:*

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Browse all CWE-203 (Observable Discrepancy) vulnerabilities →