peter bassill · operator
$ cve CVE-2018-20354 JSON

CVE-2018-20354

9.8
CRITICAL · CVSS 3.0 · EPSS 3.6% (pctl 89)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

An invalid read of 8 bytes due to a use-after-free vulnerability during a "return" in the mg_http_get_proto_data function in mongoose.c in Cesanta Mongoose Embedded Web Server Library 6.13 and earlier allows a denial of service (application crash) or remote code execution.

Scoring

CVSS9.8 (CRITICAL, v3.0)
VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS3.57% — more likely to be exploited than 89% of all CVEs
WeaknessCWE-416
On CISA KEVno
Public exploitnone known
Published2019-06-10
Last modified2026-06-17

Affected (1)

VendorProduct
cesantamongoose

References

→ the Explorer  ·  watch your stack  ·  NVD