How severe is CVE-2021-20378?

CVE-2021-20378 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-20378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20378?

CVE-2021-20378 primarily affects Ibm Guardium Data Encryption. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-20378?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-20378 published?

CVE-2021-20378 was published on 2021-07-07 and last updated on 2026-06-17.

CVE-2021-20378

CVE-2021-20378 is a high-severity vulnerability in Ibm Guardium Data Encryption with a CVSS 3.x base score of 8.8. 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-613.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Ibm Guardium Data Encryption
Published: 2021-07-07
Last modified: 2026-06-17

Description

IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 195709.

Frequently asked questions

What is CVE-2021-20378?: IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 195709.
How severe is CVE-2021-20378?: CVE-2021-20378 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-20378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20378?: CVE-2021-20378 primarily affects Ibm Guardium Data Encryption. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-20378 published?: CVE-2021-20378 was published on 2021-07-07 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ibm:guardium_data_encryption:3.0.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:guardium_data_encryption:4.0.0.4:*:*:*:*:*:*:*

More vulnerabilities in Ibm Guardium Data Encryption

CVE-2019-4694 — Critical (CVSS 9.8): IBM Security Guardium Data Encryption (GDE) 3.0.0.2 contains hard-coded credentials, such as a password or…
CVE-2021-39022 — High (CVSS 8.8): IBM Guardium Data Encryption (GDE) 4.0.0.0 and 5.0.0.0 saves user-provided information into a Comma-Separated Value…
CVE-2019-4713 — High (CVSS 8.8): IBM Security Guardium Data Encryption (GDE) 3.0.0.2 could allow a remote authenticated attacker to execute arbitrary…
CVE-2021-39023 — High (CVSS 7.5): IBM Guardium Data Encryption (GDE) 4.0.0 and 5.0.0 could allow a remote attacker to obtain sensitive information when a…
CVE-2021-20474 — High (CVSS 7.5): IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not perform any authentication for functionality that…
CVE-2021-20415 — High (CVSS 7.5): IBM Guardium Data Encryption (GDE) 4.0.0.4 uses an inadequate account lockout setting that could allow a remote…

All CVEs affecting Ibm Guardium Data Encryption →

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