How severe is CVE-2021-20420?

CVE-2021-20420 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-2021-20420 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-2021-20420?

CVE-2021-20420 affects Ibm Security Guardium. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20420?

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

When was CVE-2021-20420 published?

CVE-2021-20420 was published on 2021-08-11 and last updated on 2026-06-17.

CVE-2021-20420

CVE-2021-20420 is a medium-severity vulnerability in Ibm Security Guardium 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 Security Guardium
Published: 2021-08-11
Last modified: 2026-06-17

Description

IBM Security Guardium 11.2 could disclose sensitive information due to reliance on untrusted inputs that could aid in further attacks against the system. IBM X-Force ID: 196281.

Frequently asked questions

What is CVE-2021-20420?: IBM Security Guardium 11.2 could disclose sensitive information due to reliance on untrusted inputs that could aid in further attacks against the system. IBM X-Force ID: 196281.
How severe is CVE-2021-20420?: CVE-2021-20420 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-2021-20420 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-2021-20420?: CVE-2021-20420 affects Ibm Security Guardium. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20420 published?: CVE-2021-20420 was published on 2021-08-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:security_guardium:11.2:*:*:*:*:*:*:*

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