CVE-2021-42767

A directory traversal vulnerability in the apoc plugins in Neo4J Graph database before 4.4.0.1 allows attackers to read local files, and sometimes create local files. This is fixed in 3.5.17, 4.2.10, 4.3.0.4, and 4.4.0.1.

Published: 2022-03-01 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-42767 is rated Moderate Risk (61.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.72%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-42767

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-10-07 0.61% 0.72% +0.10%
2 2025-03-30 1.28% 0.61% -0.66%
3 2025-03-29 — 1.28% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-42767

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 5.2 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2021-42767

GitHub Security Advisory for CVE-2021-42767

GHSA-4mpj-488r-vh6m · Severity: critical · Ecosystem: maven — Neo4j Graph Database vulnerable to Path Traversal

Affected software / configurations for CVE-2021-42767

Vendor Product Version Raw CPE
neo4j awesome_procedures < 3.5.0.17 cpe:2.3:a:neo4j:awesome_procedures:*:*:*:*:*:neo4j:*:*
neo4j awesome_procedures >= 4.2.0.0, < 4.2.10 cpe:2.3:a:neo4j:awesome_procedures:*:*:*:*:*:neo4j:*:*
neo4j awesome_procedures >= 4.3.0.0, < 4.3.0.4 cpe:2.3:a:neo4j:awesome_procedures:*:*:*:*:*:neo4j:*:*
neo4j awesome_procedures >= 4.4.0.0, < 4.4.0.1 cpe:2.3:a:neo4j:awesome_procedures:*:*:*:*:*:neo4j:*:*

References for CVE-2021-42767

cvelogic Threat Intelligence