CVE-2026-43831
Received Received - Intake

Stack-Based Buffer Overflow in Log Message Functionality

Vulnerability report for CVE-2026-43831, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-31

Last updated on: 2026-07-31

Assigner: CSA

Description

Successful exploitation of the vulnerability could allow an unauthenticated attacker to exploit a stack-based buffer overflow in the log message functionality to conduct code execution.

CVSS Scores

EPSS Scores

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Percentile:

Meta Information

Published
2026-07-31
Last Modified
2026-07-31
Generated
2026-07-31
AI Q&A
2026-07-31
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This vulnerability is a stack-based buffer overflow in the log message functionality. An unauthenticated attacker could exploit it to execute arbitrary code on the affected system.

Detection Guidance

This vulnerability involves a stack-based buffer overflow in log message functionality. Detection requires monitoring for unusual log entries or system crashes. Check logs for malformed messages or excessive size. Use tools like grep or tail to inspect logs for anomalies. No specific commands are provided in the context.

Impact Analysis

An attacker could gain control of the system, steal data, install malware, or disrupt services. The high CVSS score (9.2) indicates severe impact potential.

Compliance Impact

This vulnerability allows unauthenticated attackers to execute arbitrary code via a stack-based buffer overflow in log message functionality. Such remote code execution could lead to unauthorized access, data breaches, or data exfiltration, which are critical violations under GDPR and HIPAA. Compliance failures may result in legal penalties, fines, and reputational damage.

Mitigation Strategies

Apply vendor-provided patches or updates immediately to address the stack-based buffer overflow in the log message functionality. Monitor logs for unusual activity and restrict network access to vulnerable systems until patched.

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