How severe is CVE-2025-54816?

CVE-2025-54816 has a CVSS 3.x base score of 9.4, 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 low.

Is CVE-2025-54816 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54816?

CVE-2025-54816 affects Evmapa. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54816?

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-2025-54816 have an EU (EUVD) identifier?

Yes. CVE-2025-54816 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4500.

When was CVE-2025-54816 published?

CVE-2025-54816 was published on 2026-01-22 and last updated on 2026-06-17.

CVE-2025-54816

CVE-2025-54816 is a critical-severity vulnerability in Evmapa with a CVSS 3.x base score of 9.4. 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4500
Weakness: CWE-306
Affected product: Evmapa
Published: 2026-01-22
Last modified: 2026-06-17

Description

This vulnerability occurs when a WebSocket endpoint does not enforce proper authentication mechanisms, allowing unauthorized users to establish connections. As a result, attackers can exploit this weakness to gain unauthorized access to sensitive data or perform unauthorized actions. Given that no authentication is required, this can lead to privilege escalation and potentially compromise the security of the entire system.

Frequently asked questions

What is CVE-2025-54816?: This vulnerability occurs when a WebSocket endpoint does not enforce proper authentication mechanisms, allowing unauthorized users to establish connections. As a result, attackers can exploit this weakness to gain unauthorized access to sensitive data or perform unauthorized actions. Given that no authentication is required, this can lead to privilege escalation and potentially compromise the security of the entire system.
How severe is CVE-2025-54816?: CVE-2025-54816 has a CVSS 3.x base score of 9.4, 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 low.
Is CVE-2025-54816 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54816?: CVE-2025-54816 affects Evmapa. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54816?: 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-2025-54816 have an EU (EUVD) identifier?: Yes. CVE-2025-54816 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4500.
When was CVE-2025-54816 published?: CVE-2025-54816 was published on 2026-01-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:evmapa:evmapa:*:*:*:*:*:*:*:*

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