What is CVE-2017-2891?

CVE-2017-2891 is a critical-severity vulnerability in Cesanta Mongoose, classified under Use After Free. CVSS score: 9.8/10. Published 2017-11-07.

How severe is CVE-2017-2891?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Cesanta Mongoose

CVE-2017-2891

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 cod…

Vulnerability class: Use-After-Free

EPSS: 0.029 (86.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cesanta Mongoose — versions 6.8

Weakness classification (CWE)

CWE-416 — Use After Free

References

talos-cna@cisco.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2017-2891?: CVE-2017-2891 is a critical-severity vulnerability in Cesanta Mongoose, classified under Use After Free. CVSS score: 9.8/10. Published 2017-11-07.
How severe is CVE-2017-2891?: Critical severity. CVSS v3 base score is 9.8 out of 10.