How severe is CVE-2019-18233?

CVE-2019-18233 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-18233 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18233?

CVE-2019-18233 affects Advantech Spectre Rt Ert351 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18233?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-18233 published?

CVE-2019-18233 was published on 2021-03-17 and last updated on 2026-06-17.

CVE-2019-18233

CVE-2019-18233 is a medium-severity vulnerability in Advantech Spectre Rt Ert351 Firmware with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Advantech Spectre Rt Ert351 Firmware
Published: 2021-03-17
Last modified: 2026-06-17

Description

In Advantech Spectre RT Industrial Routers ERT351 5.1.3 and prior, the affected product does not neutralize special characters in the error response, allowing attackers to use a reflected XSS attack.

Frequently asked questions

What is CVE-2019-18233?: In Advantech Spectre RT Industrial Routers ERT351 5.1.3 and prior, the affected product does not neutralize special characters in the error response, allowing attackers to use a reflected XSS attack.
How severe is CVE-2019-18233?: CVE-2019-18233 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-18233 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18233?: CVE-2019-18233 affects Advantech Spectre Rt Ert351 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18233?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18233 published?: CVE-2019-18233 was published on 2021-03-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:advantech:spectre_rt_ert351_firmware:*:*:*:*:*:*:*:*

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