Is CVE-2023-34340 actively exploited?

No active exploitation of CVE-2023-34340 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-34340 be exploited remotely?

Yes. CVE-2023-34340 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-34340?

CVE-2023-34340 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-34340

CWE-287Published: June 21, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Improper Authentication vulnerability in Apache Software Foundation Apache Accumulo.

This issue affects Apache Accumulo: 2.1.0.

Accumulo 2.1.0 contains a defect in the user authentication process that may succeed when invalid credentials are provided. Users are advised to upgrade to 2.1.1.

NVD Source

Risk Analysis

Apache Accumulo 2.1.0 contains a defect in the user authentication process that may allow authentication to succeed with invalid credentials. This critical flaw allows unauthorized access to the system.

No public exploit is known, and it is not in the KEV catalog. The vulnerability is remotely exploitable with low complexity.

Recommended Action

Upgrade to Apache Accumulo version 2.1.1.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-34340 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.