CVE-2026-44072— system() after failed chdir()
Quick assessment
Affected
Netatalk Netatalk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Netatalk是Netatalk开源的一款软件，为 Classic Mac OS 和 macOS 在 Unix-like OS 上提供 AFP 文件服务器功能。 Netatalk 2.2.1版本至4.4.2版本存在操作系统命令注入漏洞，该漏洞源于chdir()失败后调用system()时未正确处理错误条件，可能导致本地特权用户在特定条件下执行意外命令或造成轻微服务中断。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-44072
Vulnerability Information
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Vulnerability Title
system() after failed chdir()
Source: CVE Program / CVE List V5
Vulnerability Description
Netatalk 2.2.1 through 4.4.2 calls system() after a failed chdir() without properly handling the error condition, which allows a local privileged user to execute unintended commands or cause a minor service disruption under specific conditions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Netatalk 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netatalk是Netatalk开源的一款软件，为 Classic Mac OS 和 macOS 在 Unix-like OS 上提供 AFP 文件服务器功能。 Netatalk 2.2.1版本至4.4.2版本存在操作系统命令注入漏洞，该漏洞源于chdir()失败后调用system()时未正确处理错误条件，可能导致本地特权用户在特定条件下执行意外命令或造成轻微服务中断。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-44072
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-44072 (1)
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🔗 Netatalk - Netatalk Security Advisory vendor-advisory
Same Patch Batch · Netatalk · 2026-05-21 · 33 CVEs total
| CVE-2026-44050 | 9.9 CRITICAL | Heap buffer overflow in CNID daemon comm_rcv() |
| CVE-2026-44048 | 8.8 HIGH | Stack buffer overflow via UCS-2 type confusion in convert_charset() |
| CVE-2026-44047 | 8.8 HIGH | SQL injection in MySQL CNID backend |
| CVE-2026-44051 | 8.1 HIGH | Arbitrary file read via attacker-controlled symlink creation |
| CVE-2026-44068 | 7.6 HIGH | EA path traversal via incomplete sanitization |
| CVE-2026-44062 | 7.5 HIGH | Missing o_len bounds check in pull_charset_flags() |
| CVE-2026-44055 | 7.5 HIGH | Bitwise OR logic bug enables shell injection |
| CVE-2026-44052 | 7.5 HIGH | LDAP simple-bind password exposure in log output |
| CVE-2026-44060 | 7.5 HIGH | Integer underflow in dsi_writeinit() leads to denial of service |
| CVE-2026-44049 | 7.5 HIGH | Out-of-bounds write in convert_charset() null termination |
| CVE-2026-44053 | 7.4 HIGH | Weak cryptography in DHCAST128 UAM |
| CVE-2026-44064 | 7.1 HIGH | ASP session ID out-of-bounds access |
| CVE-2026-44066 | 7.1 HIGH | Heap out-of-bounds reads in Spotlight RPC unmarshalling |
| CVE-2026-44076 | 6.7 MEDIUM | Shell injection via volume path |
| CVE-2026-44054 | 6.5 MEDIUM | Predictable afpd session token |
| CVE-2026-44058 | 6.4 MEDIUM | Authentication bypass via admin auth user |
| CVE-2026-44056 | 6.0 MEDIUM | Stack buffer overflow in desktop.c |
| CVE-2026-44061 | 5.9 MEDIUM | DES-ECB auth with timing side channel |
| CVE-2026-44063 | 4.2 MEDIUM | LDAP filter injection |
| CVE-2026-44073 | 4.0 MEDIUM | seteuid failure ignored in auth modules |
Showing top 20 of 33 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-44072
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