CVE-2017-2921
9.8
CRITICAL
CVSS 3.1
EPSS 2.1%
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.
How to fix CVE-2017-2921
To remediate CVE-2017-2921, upgrade the affected package to a fixed version below.
- —upgrade to 18.5.0~ds1-1 or later
Is CVE-2017-2921 being exploited?
Low — EPSS is 2.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 18.5.0~ds1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |