Netatalk up to 4.4.3 EA Header Parser heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Netatalk up to 4.4.3. It has been rated as critical. Impacted is an unknown function of the component EA Header Parser. This manipulation causes heap-based overflow. This vulnerability is tracked as CVE-2026-44067. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Netatalk up to 4.4.3 and classified as critical. Affected by this vulnerability is an unknown function of the component EA Header Parser. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A heap over-read in extended attribute (EA) header parsing in Netatalk 2.1.0 through 4.4.2 allows a remote authenticated attacker to obtain limited information or cause a minor service disruption via crafted EA data.

It is possible to read the advisory at sourceforge.net. This vulnerability is known as CVE-2026-44067. The exploitation appears to be easy. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.4.3 eliminates this vulnerability. The upgrade is hosted for download at netatalk.io.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Netatalk 4.4.3

Timelineinfo

05/19/2026 Advisory disclosed
05/19/2026 +0 days VulDB entry created
05/24/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: sourceforge.net
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-44067 (🔒)
GCVE (CVE): GCVE-0-2026-44067
GCVE (VulDB): GCVE-100-364567

Entryinfo

Created: 05/19/2026 07:56
Updated: 05/24/2026 04:23
Changes: 05/19/2026 07:56 (53), 05/24/2026 04:23 (12)
Complete: 🔍
Cache ID: 216::103

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