CVE-2026-7836
Deferred Deferred - Pending Action
Hextoint Macro Uppercase Bug in Netatalk

Publication date: 2026-05-21

Last updated on: 2026-05-21

Assigner: securin

Description
An incorrect calculation in the hextoint macro in Netatalk 2.0.0 through 4.4.2 due to improper uppercase character handling allows a remote authenticated attacker to cause limited data modification via crafted hexadecimal input.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-21
Last Modified
2026-05-21
Generated
2026-06-10
AI Q&A
2026-05-21
EPSS Evaluated
2026-06-09
NVD
CVE-2026-7836
EUVD
EUVD-2026-31222
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
netatalk netatalk From 2.0.0 (inc) to 4.4.2 (inc)
netatalk netatalk 4.5.0
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-682 The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a bug in the hextoint macro in Netatalk versions 2.0.0 through 4.4.2. It is related to uppercase handling in the macro. The issue was fixed in version 4.5.0.

Impact Analysis

The vulnerability has a CVSS v3.1 base score of 3.1, indicating a low severity impact. It requires network access with high attack complexity and low privileges, and it does not require user interaction. The impact is limited to integrity loss, with no confidentiality or availability impact.

Mitigation Strategies

To mitigate this vulnerability, upgrade Netatalk to version 4.5.0 or later, where the hextoint macro uppercase bug is fixed.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-7836. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart