Linux Distros Unpatched Vulnerability : CVE-2026-3548

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap- based buffer overflow could occur when improperly storin...

wolfSSL（CyaSSL） 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, aimed at developers working with embedded systems. wolfSSL CyaSSL has security vulnerabilities; these vulnerabilities stem from two buffer overflow vulnerabilities in the CRL parser’s...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, aimed at developers working with embedded systems. There is a security vulnerability in wolfSSL, which stems from a stack buffer overflow in the PKCS7 SignedData encoding function. When...

PT-2026-26339

Heap Overflow in TLS 1.3 ECH parsing. An integer underflow existed in ECH extension parsing logic when calculating a buffer length, which resulted in writing beyond the bounds of an allocated buffer. Note that in wolfSSL, ECH is off by default, and the ECH standard is still evolving...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the US company wolfSSL, designed for developers working with embedded systems. There is a security vulnerability in wolfSSL, which stems from integer overflow in the static function wolfssladdtochain. This...

PT-2026-26321

Name of the Vulnerable Software and Affected Versions wolfSSL versions prior to 5.8.4 Description A flaw existed in the TLS 1.2 server state machine implementation where the server could incorrectly accept the CertificateVerify message before the ClientKeyExchange message was received. This issue...

wolfSSL（CyaSSL） 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the US-based wolfSSL company, designed for developers working with embedded systems. Version 5.8.4 of wolfSSL CyaSSL contains a security vulnerability. This vulnerability stems from a stack buffer overflow issue in...

wolfSSL（CyaSSL） 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, designed for developers working with embedded systems. wolfSSL CyaSSL contains a security vulnerability. This vulnerability stems from the lack of necessary encryption steps in the TLS...

PT-2026-26338

Out-of-bounds read in ALPN parsing due to incomplete validation. wolfSSL 5.8.4 and earlier contained an out-of-bounds read in ALPN handling when built with ALPN enabled HAVE ALPN / --enable-alpn. A crafted ALPN protocol list could trigger an out-of-bounds read, leading to a potential process cras...

PT-2026-26349

Name of the Vulnerable Software and Affected Versions wolfSSL version 5.8.4 Description A flaw exists in wolfSSL 5.8.4’s Encrypted Client Hello ECH support. A specially crafted ECH configuration from a malicious TLS server can trigger a stack buffer overflow on the client side. This could...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the American company wolfSSL, designed for developers working with embedded systems. Version 5.8.4 of wolfSSL contains a security vulnerability. This vulnerability stems from the constant-time masking logic in...

PT-2026-26368

Heap-based buffer overflow in the KCAPI ECC code path of wc ecc import x963 ex in wolfSSL wolfcrypt allows a remote attacker to write attacker-controlled data past the bounds of the pubkey raw buffer via a crafted oversized EC public key point. The WOLFSSL KCAPI ECC code path copies the input to...

PT-2026-26322

A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSL d2i SSL SESSION function. When deserializing session data with SESSION CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers...

CVE-2026-3230: Improper Input Validation

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required keyshare extension,...

wolfSSL 安全漏洞

wolfSSL CyaSSL is a small, portable embedded SSL programming library developed by the US-based wolfSSL company, designed for developers working with embedded systems. There is a security vulnerability in wolfSSL, which stems from a heap buffer overflow in the wolfSSLd2iSSLSESSION function. When...

Linux Distros Unpatched Vulnerability : CVE-2026-3579

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted muldi3 subroutine...

CVE-2026-1005: Integer Underflow (Wrap or Wraparound)

Integer underflow in wolfSSL packet sniffer = 5.8.4 allows an attacker to cause a buffer overflow in the AEAD decryption path by injecting a TLS record shorter than the explicit IV plus authentication tag into traffic inspected by sslDecodePacket. The underflow wraps a 16-bit length to a large...

CVE-2026-3579: Observable Discrepancy

wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted muldi3 subroutine executes in variable time based on operand values. This affects multiple SP math functions sp256mul9, sp256sqr9, etc., leading to a timing...

CVE-2026-4159: Out-of-bounds Read

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-3580: Observable Discrepancy

In wolfSSL 5.8.4, constant-time masking logic in sp256getentry2569 is optimized into conditional branches bnez by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret...