How severe is CVE-2025-11602?

CVE-2025-11602 has a CVSS 4.0 base score of 6.3, rated medium severity.

Is CVE-2025-11602 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-11602?

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

Does CVE-2025-11602 have an EU (EUVD) identifier?

Yes. CVE-2025-11602 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37324.

When was CVE-2025-11602 published?

CVE-2025-11602 was published on 2025-10-31 and last updated on 2026-06-17.

CVE-2025-11602

CVE-2025-11602 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.3. 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-226.

Key facts

Severity: Medium (CVSS 4.0 base score 6.3)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37324
Weakness: CWE-226
Published: 2025-10-31
Last modified: 2026-06-17

Description

Potential information leak in bolt protocol handshake in Neo4j Enterprise and Community editions allows attacker to obtain one byte of information from previous connections. The attacker has no control over the information leaked in server responses.

Frequently asked questions

What is CVE-2025-11602?: Potential information leak in bolt protocol handshake in Neo4j Enterprise and Community editions allows attacker to obtain one byte of information from previous connections. The attacker has no control over the information leaked in server responses.
How severe is CVE-2025-11602?: CVE-2025-11602 has a CVSS 4.0 base score of 6.3, rated medium severity.
Is CVE-2025-11602 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-11602?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-11602 have an EU (EUVD) identifier?: Yes. CVE-2025-11602 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37324.
When was CVE-2025-11602 published?: CVE-2025-11602 was published on 2025-10-31 and last updated on 2026-06-17.

References

https://neo4j.com/security/cve-2025-11602

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