JLSEC-2026-754 The PKCS#7 decode path ignores the caller-supplied output buffer size (outputSz), allowing decoded...

The PKCS7 decode path ignores the caller-supplied output buffer size outputSz, allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release...

CVE-2026-6681

The PKCS7 decode path ignores the caller-supplied output buffer size outputSz, allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release...

CVE-2026-6679

A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This...

EUVD-2026-39556

The PKCS7 decode path ignores the caller-supplied output buffer size outputSz, allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release...

PT-2024-6325

Name of the Vulnerable Software and Affected Versions wolfSSL versions through 5.7.0 Description The issue is related to the function MatchDomainName in the wolfSSL library, where the input parameter str is treated as a NULL terminated string despite being user-provided and unchecked. This can le...

PT-2022-12209 · Wolfssl +1 · Wolfssl +1

Name of the Vulnerable Software and Affected Versions: wolfSSL versions through 5.0.0 Description: The issue allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle MITM position. The root cause is that the...

DEBIAN-CVE-2022-23408

wolfSSL 5.x before 5.1.1 uses non-random IV values in certain situations. This affects connections without AEAD using AES-CBC or DES3 with TLS 1.1 or 1.2 or DTLS 1.1 or 1.2. This occurs because of misplaced memory initialization in BuildMessage in internal.c...

DEBIAN-CVE-2019-18840

In wolfSSL 4.1.0 through 4.2.0c, there are missing sanity checks of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer overflow inside the DecodedCert structure in GetName in wolfcrypt/src/asn.c because the domain name location...