How severe is CVE-2021-20377?

CVE-2021-20377 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-20377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20377?

CVE-2021-20377 affects Ibm Security Guardium. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20377?

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

When was CVE-2021-20377 published?

CVE-2021-20377 was published on 2021-09-23 and last updated on 2026-06-17.

CVE-2021-20377

CVE-2021-20377 is a low-severity vulnerability in Ibm Security Guardium with a CVSS 3.x base score of 2.7. 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-209.

Key facts

Severity: Low (CVSS 3.x base score 2.7)
CVSS v2: 4.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Ibm Security Guardium
Published: 2021-09-23
Last modified: 2026-06-17

Description

IBM Security Guardium 11.3 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 195569.

Frequently asked questions

What is CVE-2021-20377?: IBM Security Guardium 11.3 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 195569.
How severe is CVE-2021-20377?: CVE-2021-20377 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-20377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20377?: CVE-2021-20377 affects Ibm Security Guardium. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20377 published?: CVE-2021-20377 was published on 2021-09-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:security_guardium:11.3:*:*:*:*:*:*:*

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