What is CVE-2018-20356?

CVE-2018-20356 is a critical-severity vulnerability in Cesanta Mongoose, classified under Use After Free. CVSS score: 9.8/10. Published 2019-06-10.

How severe is CVE-2018-20356?

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

Use After Free in Cesanta Mongoose

CVE-2018-20356

An invalid read of 8 bytes due to a use-after-free vulnerability in the mg_http_free_proto_data_cgi function call in mongoose.c in Cesanta Mongoose Embedded Web Server Library 6.13 and earlier allows a denial of service (application crash)…

Vulnerability class: Use-After-Free

EPSS: 0.036 (88.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cesanta Mongoose
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-20356?: CVE-2018-20356 is a critical-severity vulnerability in Cesanta Mongoose, classified under Use After Free. CVSS score: 9.8/10. Published 2019-06-10.
How severe is CVE-2018-20356?: Critical severity. CVSS v3 base score is 9.8 out of 10.