CVE-2021-34371

Neo4j vulnerability

CVSS

9.8

EPSS

13.4%

EPSS pct

96th

Exploited

No known

Neo4j through 3.4.18 (with the shell server enabled) exposes an RMI service that arbitrarily deserializes Java objects, e.g., through setSessionVariable. An attacker can abuse this for remote code execution because there are dependencies with exploitable gadget chains.

Affected vendor

Neo4j

Affected product

Neo4j

CVSS vector

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

Weakness type (CWE)

CWE-502 — Deserialization of Untrusted Data

Published

2021-08-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 13.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2021-34371

Confirm whether Neo4j Neo4j is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-34371.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-34371

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-34371 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2021-34371?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2021-34371.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL

CVE-2017-12706

Webaccess vulnerability

CRITICAL

CVE-2017-12708

Webaccess vulnerability

CRITICAL

CVE-2017-13708

Vx Search vulnerability