CVE-2026-44071Network attack vector

Exploit mitigation loss via disabled compiler fortification

Published May 21, 2026 · Updated May 21, 2026

Protection mechanism failure in Netatalk 3.1.2 through 4.4.2 disables fortification checks in the MySQL CNID backend. The MySQL CNID source module explicitly disables FORTIFY_SOURCE, preventing compiler-added runtime buffer checks for that module. The backend must be compiled and used, and Netatalk states that the missing hardening is not independently exploitable or associated with direct confidentiality, integrity, or availability impact.

CVSS severity0.0
None
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Protection mechanism failure in Netatalk 3.1.2 through 4.4.2 disables fortification checks in the MySQL CNID backend. The MySQL CNID source module explicitly disables FORTIFY_SOURCE, preventing compiler-added runtime buffer checks for that module. The backend must be compiled and used, and Netatalk states that the missing hardening is not independently exploitable or associated with direct confidentiality, integrity, or availability impact.

The record

CVE
CVE-2026-44071
Published
May 21, 2026
Updated
May 21, 2026
Vendor
Netatalk
Product
Netatalk
Classifications
CWE-693
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2026CVE publishedPublication date reported by the CVE source.
  2. May 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.1.2 <=4.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Netatalk · Netatalkversion=3.1.2 <=4.4.2

Published CVSS scores

0.0NetatalkCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:N
3.7National Vulnerability DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
5.9SUSECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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