Is CVE-2023-31039 actively exploited?

No active exploitation of CVE-2023-31039 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-31039 be exploited remotely?

Yes. CVE-2023-31039 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-31039?

CVE-2023-31039 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-31039

CWE-20Published: May 8, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Security vulnerability in Apache bRPC <1.5.0 on all platforms allows attackers to execute arbitrary code via ServerOptions::pid_file.

An attacker that can influence the ServerOptions pid_file parameter with which the bRPC server is started can execute arbitrary code with the permissions of the bRPC process.

Solution:

1. upgrade to bRPC >= 1.5.0, download link: https://dist.apache.org/repos/dist/release/brpc/1.5.0/ https://dist.apache.org/repos/dist/release/brpc/1.5.0/

2. If you are using an old version of bRPC and hard to upgrade, you can apply this patch: https://github.com/apache/brpc/pull/2218 https://github.com/apache/brpc/pull/2218

NVD Source

Risk Analysis

Apache bRPC contains a vulnerability that allows an attacker to execute arbitrary code with the permissions of the bRPC process by manipulating the pid_file parameter. This critical flaw carries a CVSS score of 9.8, indicating a high risk of total system compromise.

No public exploit is currently known, and the vulnerability is not in the KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Upgrade to bRPC version 1.5.0 or later, or apply the provided patch if an immediate upgrade is not feasible.

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-2023-31039 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.