CVE-2025-5437Public exploitNetwork attack vector

Unauthenticated administrator password change via CGI request

Published Jun 2, 2025 · Updated Jun 2, 2025

Improper authentication in Multilaser Sirius RE016 MLT1.0 allows remote attackers to change the administrator password over HTTP. The Password Change Handler accepts an unauthenticated POST to /cgi-bin/cstecgi.cgi with topicurl set to setting/setPasswordCfg and writes the supplied admpass as the administrator password. Network reachability to the router's web interface is sufficient; successful exploitation takes control of administrator authentication without crashing the device.

CVSS severity6.9
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Multilaser Sirius RE016 MLT1.0 allows remote attackers to change the administrator password over HTTP. The Password Change Handler accepts an unauthenticated POST to /cgi-bin/cstecgi.cgi with topicurl set to setting/setPasswordCfg and writes the supplied admpass as the administrator password. Network reachability to the router's web interface is sufficient; successful exploitation takes control of administrator authentication without crashing the device.

The record

CVE
CVE-2025-5437
Published
Jun 2, 2025
Updated
Jun 2, 2025
Vendor
Multilaser
Product
Sirius RE016
Classifications
CWE-287, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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=MLT1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Multilaser · Sirius RE016version=MLT1.0

Published CVSS scores

5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N

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.

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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-287Improper Authentication
T1098Account Manipulation

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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