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CVE-2021-34802

26
FAUCET Score

CVE-2021-34802 describes a high-severity privilege escalation vulnerability affecting Neo4j Graph Database versions 4.2 and 4.3. This flaw stems from a failure to properly reset the security context during certain transaction actions, enabling authenticated users to execute commands with elevated privileges. With a CVSS score of 8.8, the vulnerability is easily exploitable over the network with low privileges and no user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.2CPE matchmatch criteria
cpe:2.3:a:neo4j:graph_databse:4.2:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:a:neo4j:graph_databse:4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0104 is in the 56th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.neo4j:neo4j-kernelFixed in: 4.2.8

Vendor Advisories (1)

mavenGHSA-2w4h-f44w-968fhigh

Improper Privilege Management in Neo4j Graph Database

May 24, 2022

References

neo4j.com
Product
neo4j.com / developer/kb/neo4j-4-2-x-sec-vuln-fix
Vendor Advisory