How severe is CVE-2021-20406?

CVE-2021-20406 has a CVSS 3.x base score of 2.2, rated low severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-20406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20406?

CVE-2021-20406 primarily affects Ibm Security Verify Information Queue. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-20406?

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

When was CVE-2021-20406 published?

CVE-2021-20406 was published on 2021-02-12 and last updated on 2026-06-17.

CVE-2021-20406

CVE-2021-20406 is a low-severity vulnerability in Ibm Security Verify Information Queue with a CVSS 3.x base score of 2.2. 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-326.

Key facts

Severity: Low (CVSS 3.x base score 2.2)
CVSS v2: 4.0
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Ibm Security Verify Information Queue
Published: 2021-02-12
Last modified: 2026-06-17

Description

IBM Security Verify Information Queue 1.0.6 and 1.0.7 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196184.

Frequently asked questions

What is CVE-2021-20406?: IBM Security Verify Information Queue 1.0.6 and 1.0.7 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196184.
How severe is CVE-2021-20406?: CVE-2021-20406 has a CVSS 3.x base score of 2.2, rated low severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-20406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20406?: CVE-2021-20406 primarily affects Ibm Security Verify Information Queue. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20406?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20406 published?: CVE-2021-20406 was published on 2021-02-12 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ibm:security_verify_information_queue:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:security_verify_information_queue:1.0.7:*:*:*:*:*:*:*

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