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CVE-2017-2921

CRITICAL
9.8
CVSS Score
Published: November 7, 2017 at 04:00 PM UTC
Updated: June 17, 2026 at 01:17 AM UTC
1 product affected across 1 vendorMongoose

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet can cause an integer overflow, leading to a heap buffer overflow and resulting in denial of service and potential remote code execution. An attacker needs to send a specially crafted websocket packet over network to trigger this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
Source: [email protected]
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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