CVE-2026-44060
Deferred Deferred - Pending Action

Integer Underflow in Netatalk Denial of Service

Publication date: 2026-05-21

Last updated on: 2026-05-21

Assigner: securin

Description
An integer underflow in dsi_writeinit() in Netatalk 1.5.0 through 4.4.2 allows a remote unauthenticated attacker to cause a denial of service via a crafted DSI write request.

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Meta Information

Published
2026-05-21
Last Modified
2026-05-21
Generated
2026-06-30
AI Q&A
2026-05-21
EPSS Evaluated
2026-06-29
NVD
CVE-2026-44060
EUVD
EUVD-2026-31237

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
netatalk netatalk From 1.5.0 (inc) to 4.4.2 (inc)
netatalk netatalk 4.4.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-191 The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

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Executive Summary

This vulnerability exists in Netatalk versions 1.5.0 through 4.4.2 and is caused by an integer underflow in the function dsi_writeinit().

An integer underflow occurs when an arithmetic operation attempts to create a numeric value that is lower than the minimum representable value, which can lead to unexpected behavior.

In this case, the underflow leads to a denial of service condition, meaning the affected software can crash or become unavailable.

This issue was fixed in Netatalk version 4.4.3.

Impact Analysis

The primary impact of this vulnerability is a denial of service (DoS).

An attacker could exploit the integer underflow in dsi_writeinit() to cause the Netatalk service to crash or become unavailable.

This could disrupt access to file sharing services provided by Netatalk, affecting availability.

Mitigation Strategies

The vulnerability in Netatalk versions 1.5.0 through 4.4.2 is fixed in version 4.4.3.

To mitigate this vulnerability, you should upgrade Netatalk to version 4.4.3 or later.

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