CVE-2025-51495
High
Description
An integer overflow vulnerability exists in the WebSocket component of Mongoose 7.5 thru 7.17. By sending a specially crafted WebSocket request, an attacker can cause the application to crash. If downstream vendors integrate this component improperly, the issue may lead to a buffer overflow.
SeverityHigh
CVSS7.5
Exploit probability—
ProductCesanta Mongoose
PublishedSep 29, 2025
First seenSep 29, 2025
Weakness typeCWE-190Integer overflow
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cesanta mongoose | 7.5 ≤ v ≤ 7.17 | — |
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