VULNERABILITY INTELLIGENCE

CVE-2019-16748

CVSS score9.8 CRITICAL
EPSS probability1.16%
CISA KEVNot currently listed
Published2019-09-24
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

In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references