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 TC
CVSS
8.4
High
EPSS
0.3%
p17
KEV
—
Exploit Today
5
0-100
Published: May 1, 2026 · Last modified: Jul 8, 2026 · CWE-502
0.3%EPSS · 30 days0.3%
2026-06-302026-07-20
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.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2021-422379.8 CRI99.9%
KEV—80Sitecore XP Remote Command Execution Vulnerability12dCVE-2026-456598.8 HIG86.8%
KEV—76Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability19dCVE-2026-586449.8 CRI70.8%
KEV—71Microsoft SharePoint Deserialization of Untrusted Data Vulnerability4dCVE-2026-125699.8 CRI66.0%
KEV—70PTC Windchill and FlexPLM Improper Input Validation Vulnerability21dCVE-2026-505229.8 CRI97.2%
——29Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.6dCVE-2025-560059.8 CRI96.7%
——29An undocumented and unsafe feature in the PLY (Python Lex-Yacc) library 3.11 allows Remote Code Execution (RCE) via the `picklefile` parameter in the `yacc()` function. This parameter accepts a `.pkl` file that is deserialized with `pickle.load()` without validation. Because `pickle` allows execution of embedded code via `__reduce__()`, an attacker can achieve code execution by passing a malicious pickle file. The parameter is not mentioned in official documentation or the GitHub repository, yet it is active in the PyPI version. This introduces a stealthy backdoor and persistence risk. NOTE: A third-party states that this vulnerability should be rejected because the proof of concept does not demonstrate arbitrary code execution and fails to complete successfully.18h