How severe is CVE-2021-27437?

CVE-2021-27437 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-27437 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27437?

CVE-2021-27437 affects Advantech Wise-paas/rmm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27437?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-27437 published?

CVE-2021-27437 was published on 2021-05-07 and last updated on 2026-06-17.

CVE-2021-27437

CVE-2021-27437 is a critical-severity vulnerability in Advantech Wise-paas/rmm with a CVSS 3.x base score of 9.1. 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Advantech Wise-paas/rmm
Published: 2021-05-07
Last modified: 2026-06-17

Description

The affected product allows attackers to obtain sensitive information from the WISE-PaaS dashboard. The system contains a hard-coded administrator username and password that can be used to query Grafana APIs. Authentication is not required for exploitation on the WISE-PaaS/RMM (versions prior to 9.0.1).

Frequently asked questions

What is CVE-2021-27437?: The affected product allows attackers to obtain sensitive information from the WISE-PaaS dashboard. The system contains a hard-coded administrator username and password that can be used to query Grafana APIs. Authentication is not required for exploitation on the WISE-PaaS/RMM (versions prior to 9.0.1).
How severe is CVE-2021-27437?: CVE-2021-27437 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-27437 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27437?: CVE-2021-27437 affects Advantech Wise-paas/rmm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27437?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-27437 published?: CVE-2021-27437 was published on 2021-05-07 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-124-01

Affected products (1)

cpe:2.3:a:advantech:wise-paas\/rmm:*:*:*:*:*:*:*:*

More vulnerabilities in Advantech Wise-paas/rmm

CVE-2019-13551 — Critical (CVSS 9.8): Advantech WISE-PaaS/RMM, Versions 3.3.29 and prior. Path traversal vulnerabilities are caused by a lack of proper…
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