How severe is CVE-2025-27804?

CVE-2025-27804 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-27804 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-27804?

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

Does CVE-2025-27804 have an EU (EUVD) identifier?

Yes. CVE-2025-27804 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15995.

When was CVE-2025-27804 published?

CVE-2025-27804 was published on 2025-05-21 and last updated on 2026-06-17.

CVE-2025-27804

CVE-2025-27804 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. 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-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15995
Weakness: CWE-78
Published: 2025-05-21
Last modified: 2026-06-17

Description

Several OS command injection vulnerabilities exist in the device firmware in the /var/salia/mqtt.php script. By publishing a specially crafted message to a certain MQTT topic arbitrary OS commands can be executed with root permissions.

Frequently asked questions

What is CVE-2025-27804?: Several OS command injection vulnerabilities exist in the device firmware in the /var/salia/mqtt.php script. By publishing a specially crafted message to a certain MQTT topic arbitrary OS commands can be executed with root permissions.
How severe is CVE-2025-27804?: CVE-2025-27804 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-27804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-27804?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-27804 have an EU (EUVD) identifier?: Yes. CVE-2025-27804 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15995.
When was CVE-2025-27804 published?: CVE-2025-27804 was published on 2025-05-21 and last updated on 2026-06-17.

References

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