CVE-2025-54322Public exploitNetwork attack vector

Root code execution via decoded eval input

Published Dec 27, 2025 · Updated Dec 27, 2025

Eval injection in Xspeeder SXZOS through 2025-12-26 allows remote attackers to execute Python code as root via a crafted login request. The vLogin.py index view base64-decodes the chkid query value and passes the decoded text to eval() after checking only for two required substrings. Exploitation is pre-authentication but requires exactly three query parameters, a time-derived header, an SXZ user agent, and a warmed session cookie; successful code runs as root.

CVSS severity10.0
Critical
EPSS probability15.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Eval injection in Xspeeder SXZOS through 2025-12-26 allows remote attackers to execute Python code as root via a crafted login request. The vLogin.py index view base64-decodes the chkid query value and passes the decoded text to eval() after checking only for two required substrings. Exploitation is pre-authentication but requires exactly three query parameters, a time-derived header, an SXZ user agent, and a warmed session cookie; successful code runs as root.

The record

CVE
CVE-2025-54322
Published
Dec 27, 2025
Updated
Dec 27, 2025
Vendor
Xspeeder
Product
SXZOS
Classifications
CWE-95, CWE-94, T1059.006, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2025-12-26

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Xspeeder · SXZOSversion=0 <=2025-12-26

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0MITRECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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