How severe is CVE-2024-21764?

CVE-2024-21764 has a CVSS 3.x base score of 9.8, 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 high.

Is CVE-2024-21764 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21764?

CVE-2024-21764 affects Rapidscada Rapid Scada. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21764?

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.

Does CVE-2024-21764 have an EU (EUVD) identifier?

Yes. CVE-2024-21764 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19378.

When was CVE-2024-21764 published?

CVE-2024-21764 was published on 2024-02-02 and last updated on 2026-06-17.

CVE-2024-21764

CVE-2024-21764 is a critical-severity vulnerability in Rapidscada Rapid Scada with a CVSS 3.x base score of 9.8. 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 9.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19378
Weakness: CWE-798
Affected product: Rapidscada Rapid Scada
Published: 2024-02-02
Last modified: 2026-06-17

Description

In Rapid Software LLC's Rapid SCADA versions prior to Version 5.8.4, the product uses hard-coded credentials, which may allow an attacker to connect to a specific port.

Frequently asked questions

What is CVE-2024-21764?: In Rapid Software LLC's Rapid SCADA versions prior to Version 5.8.4, the product uses hard-coded credentials, which may allow an attacker to connect to a specific port.
How severe is CVE-2024-21764?: CVE-2024-21764 has a CVSS 3.x base score of 9.8, 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 high.
Is CVE-2024-21764 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21764?: CVE-2024-21764 affects Rapidscada Rapid Scada. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21764?: 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.
Does CVE-2024-21764 have an EU (EUVD) identifier?: Yes. CVE-2024-21764 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19378.
When was CVE-2024-21764 published?: CVE-2024-21764 was published on 2024-02-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rapidscada:rapid_scada:*:*:*:*:*:*:*:*

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CVE-2018-5313 — High (CVSS 7.8): A vulnerability allows local attackers to escalate privilege on Rapid Scada 5.5.0 because of weak C:\SCADA permissions.…
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