CVE-2019-18235Network attack vector

Full router access via unrestricted password guessing

Published Mar 17, 2021 · Updated Aug 5, 2024

Improper login-attempt restriction in Advantech SPECTRE RT ERT351 before 6.1.10 allows remote attackers to gain full router access. The web management login accepts repeated root-password guesses without controls that restrict excessive authentication attempts. The interface is network-reachable, requires no prior authentication or user interaction, and grants full router access when the root password is guessed.

CVSS severity9.8
Critical
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper login-attempt restriction in Advantech SPECTRE RT ERT351 before 6.1.10 allows remote attackers to gain full router access. The web management login accepts repeated root-password guesses without controls that restrict excessive authentication attempts. The interface is network-reachable, requires no prior authentication or user interaction, and grants full router access when the root password is guessed.

The record

CVE
CVE-2019-18235
Published
Mar 17, 2021
Updated
Aug 5, 2024
Vendor
Advantech
Product
SPECTRE RT
Classifications
CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record 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=Versions 5.1.3 and prior

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Advantech · SPECTRE RTversion=Versions 5.1.3 and prior

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8AdvantechCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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