Vulnerability Details CVE-2026-37552
Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17. The sync-invoke TCP server (Server.php:87) receives data from a TCP socket, passes it directly to Opis\Closure\unserialize(), then executes the result via call_user_func(). No authentication or signature verification exists on the TCP connection. An attacker with access to the localhost TCP port (server binds 127.0.0.1) can send a crafted serialized PHP closure to achieve arbitrary code execution.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 16.7%
CVSS Severity
CVSS v3 Score 8.4
References
Products affected by CVE-2026-37552
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cpe:2.3:a:openmix:mix_php:2.0.1
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cpe:2.3:a:openmix:mix_php:2.0.2
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cpe:2.3:a:openmix:mix_php:2.0.3
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cpe:2.3:a:openmix:mix_php:2.0.4
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cpe:2.3:a:openmix:mix_php:2.0.5
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cpe:2.3:a:openmix:mix_php:2.0.6
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cpe:2.3:a:openmix:mix_php:2.0.7
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cpe:2.3:a:openmix:mix_php:2.1.0
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cpe:2.3:a:openmix:mix_php:2.1.1
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cpe:2.3:a:openmix:mix_php:2.1.10
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cpe:2.3:a:openmix:mix_php:2.1.11
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cpe:2.3:a:openmix:mix_php:2.1.12
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cpe:2.3:a:openmix:mix_php:2.1.15
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cpe:2.3:a:openmix:mix_php:2.1.3
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cpe:2.3:a:openmix:mix_php:2.1.4
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cpe:2.3:a:openmix:mix_php:2.1.5
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cpe:2.3:a:openmix:mix_php:2.1.6
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cpe:2.3:a:openmix:mix_php:2.1.7
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cpe:2.3:a:openmix:mix_php:2.1.9
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cpe:2.3:a:openmix:mix_php:2.2.11
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cpe:2.3:a:openmix:mix_php:2.2.12
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cpe:2.3:a:openmix:mix_php:2.2.13
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cpe:2.3:a:openmix:mix_php:2.2.14
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cpe:2.3:a:openmix:mix_php:2.2.15
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cpe:2.3:a:openmix:mix_php:2.2.16
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cpe:2.3:a:openmix:mix_php:2.2.17
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cpe:2.3:a:openmix:mix_php:2.2.4
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cpe:2.3:a:openmix:mix_php:2.2.5
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cpe:2.3:a:openmix:mix_php:2.2.7
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cpe:2.3:a:openmix:mix_php:2.2.9