How severe is CVE-2018-25193?

CVE-2018-25193 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-25193 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2018-25193?

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

Does CVE-2018-25193 have an EU (EUVD) identifier?

Yes. CVE-2018-25193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21646.

When was CVE-2018-25193 published?

CVE-2018-25193 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2018-25193

CVE-2018-25193 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-1188.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2018-21646
Weakness: CWE-1188
Published: 2026-03-06
Last modified: 2026-06-17

Description

Mongoose Web Server 6.9 contains a denial of service vulnerability that allows remote attackers to crash the service by establishing multiple socket connections. Attackers can repeatedly create connections to the default port and send malformed data to exhaust server resources and cause service unavailability.

Frequently asked questions

What is CVE-2018-25193?: Mongoose Web Server 6.9 contains a denial of service vulnerability that allows remote attackers to crash the service by establishing multiple socket connections. Attackers can repeatedly create connections to the default port and send malformed data to exhaust server resources and cause service unavailability.
How severe is CVE-2018-25193?: CVE-2018-25193 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-25193 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2018-25193?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2018-25193 have an EU (EUVD) identifier?: Yes. CVE-2018-25193 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21646.
When was CVE-2018-25193 published?: CVE-2018-25193 was published on 2026-03-06 and last updated on 2026-06-17.

References

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