Advantech Spectre RT ERT351 Versions 5.1.3 and prior has insufficient login authentication parameters required for the web application may…

published 2021-03-17 5y ago modified 2026-06-17 4mo ago also EUVD-2019-8035

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits: 0; none known

Advantech Spectre RT ERT351 Versions 5.1.3 and prior has insufficient login authentication parameters required for the web application may allow an attacker to gain full access using a brute-force password attack.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-054-03 updated 2021-02-23 cvss 9.8

Advantech Spectre RT Industrial Routers

Advantech Spectre RT ERT351 <= 5.1.3
affected: mitigation “For additional information, please see Advantech Security Advisory SA-2021-01-01” ep.advantech-bb.cz

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a Advantech Spectre RT ERT351 Versions 5.1.3 and prior

Classification

Weakness

CWE-307 Improper Restriction of Excessive Authentication Attempts

References

ep.advantech-bb.cz /support/router-models/download/511/sa-2021-01-fw-5.1.3-and-older-en.pdf
vendor-advisory
us-cert.cisa.gov /ics/advisories/icsa-21-054-03
third-party-advisory, us-government-resource

Sources

CVE List CVE-2019-18235
NVD CVE-2019-18235

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