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.
CVE-2018-25193
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-03-06. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 26.3%
- KEV
- Not listed
Published
March 6, 2026
Last Modified
July 15, 2026
Advisory Details (1)
Auto-updated Jun 12, 2026Mongoose Web Server 6.9 Denial of Service via Socket Connection | Advisories | VulnCheck
https://www.vulncheck.com/advisories/mongoose-web-server-denial-of-service-via-socket-connectionWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 132 total refreshes for this CVE.
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Frequently asked(5)
What is CVE-2018-25193?
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What is the CVSS score of CVE-2018-25193?
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Dependency Blast Radius
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