How severe is CVE-2021-34802?

CVE-2021-34802 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-2021-34802 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34802?

CVE-2021-34802 primarily affects Neo4j Graph Databse. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-34802?

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-2021-34802 published?

CVE-2021-34802 was published on 2021-07-30 and last updated on 2026-06-17.

CVE-2021-34802

CVE-2021-34802 is a high-severity vulnerability in Neo4j Graph Databse 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-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Neo4j Graph Databse
Published: 2021-07-30
Last modified: 2026-06-17

Description

A failure in resetting the security context in some transaction actions in Neo4j Graph Database 4.2 and 4.3 could allow authenticated users to execute commands with elevated privileges.

Frequently asked questions

What is CVE-2021-34802?: A failure in resetting the security context in some transaction actions in Neo4j Graph Database 4.2 and 4.3 could allow authenticated users to execute commands with elevated privileges.
How severe is CVE-2021-34802?: CVE-2021-34802 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-2021-34802 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34802?: CVE-2021-34802 primarily affects Neo4j Graph Databse. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-34802?: 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-2021-34802 published?: CVE-2021-34802 was published on 2021-07-30 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:neo4j:graph_databse:4.2:*:*:*:*:*:*:*
cpe:2.3:a:neo4j:graph_databse:4.3:*:*:*:*:*:*:*

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