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Critical severity9.8NVD Advisory· Published Sep 24, 2019· Updated Jun 17, 2026

CVE-2019-16748

CVE-2019-16748

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • WolfSSL/Wolfssl2 versions
    cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*range: <=4.1.0
    • (no CPE)range: <=4.1.0
  • wolfSSL/wolfSSLdescription

Patches

Vulnerability mechanics

References

1

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