VULNERABILITY INTELLIGENCE
CVE-2017-2891
CVSS score9.8 CRITICAL
EPSS probability2.76%
CISA KEVNot currently listed
Published2017-11-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability.
Weakness classification
- CWE-416: Use After Free
Primary references
- talos-cna@cisco.com — Exploit, Technical Description, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory