Vulnary
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Critical· 9.8

CVE-2026-52439

A critical flaw in xiandafu beetl 3.20.2 lets a remote attacker run arbitrary code by abusing the type.new function and property reflection. The vulnerability can be triggered over the network without any user interaction.

publishedJul 23, 2026
last modifiedJul 28, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
41th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 7, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

xiandafu beetl version 3.20.2

02

Real-world impact

An attacker could take full control of the affected system, installing malware, exfiltrating data, or disrupting services.

03

Why this severity

The CVSS score of 9.8 reflects that the flaw is exploitable from anywhere on the network, requires no special privileges or user action, and compromises confidentiality, integrity, and availability completely.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

  1. Jul 23, 2026 · 8d ago
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 28, 2026 · 4d ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →