VulnerabilityAnalyzed

CVE-2026-37552

Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17.

HIGH 8.4EPSS 0.25%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 8.4 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.25% probability · 17th percentile
CISA KEV: Not listed
Weakness: CWE-502
Affected: openmix/mix php
Source: cve@mitre.org

References

https://gist.github.com/sgInnora/fa46386840fe978a30d7e53c458f2975Third Party Advisory
https://github.com/mix-php/mixProduct
https://github.com/mix-php/mix/blob/v2.2.17/src/sync-invoke/src/Server.phpProduct

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.