CVE-2019-16748 is a critical heap-based buffer over-read vulnerability affecting wolfSSL versions through 4.1.0. Specifically, a missing sanity check during ASN.1 certificate parsing in the handshaking process allows for a one-byte memory access error in the CheckCertSignature_ex function. This flaw carries a CVSS score of 9.8 (Critical), indicating it can be exploited remotely without authentication, leading to high impacts on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, suggesting awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.1.0CPE matchmatch criteria | cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.