CVE-2026-3229: Heap-based Buffer Overflow

An integer overflow vulnerability existed in the static function wolfssladdtochain, that caused heap corruption when certificate data was written out of bounds of an insufficiently sized certificate buffer. wolfssladdtochain is called by these API: wolfSSLCTXaddextrachaincert,...

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...

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-2026-3503: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

Protection mechanism failure in wolfCrypt post-quantum implementations ML-KEM and ML-DSA in wolfSSL on ARM Cortex-M microcontrollers allows a physical attacker to compromise key material and/or cryptographic outcomes via induced transient faults that corrupt or redirect seed/pointer values during...

CVE-2026-3548: Out-of-bounds Write

Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs,...

CVE-2026-2646: Heap-based Buffer Overflow

A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSLd2iSSLSESSION function. When deserializing session data with SESSIONCERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and...

CVE-2026-2645: Improperly Implemented Security Check for Standard

In wolfSSL 5.8.2 and earlier, a logic flaw existed in the TLS 1.2 server state machine implementation. The server could incorrectly accept the CertificateVerify message before the ClientKeyExchange message had been received. This issue affects wolfSSL before 5.8.4 wolfSSL 5.8.2 and earlier is...

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-2026-0819: Stack-based Buffer Overflow

A stack buffer overflow vulnerability exists in wolfSSL's PKCS7 SignedData encoding functionality. In wcPKCS7BuildSignedAttributes, when adding custom signed attributes, the code passes an incorrect capacity value esd-signedAttribsCount to EncodeAttributes instead of the remaining available space...

Linux Distros Unpatched Vulnerability : CVE-2026-3503

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Protection mechanism failure in wolfCrypt post-quantum implementations ML-KEM and ML-DSA in wolfSSL on ARM Cortex-M microcontrollers allows a physical attacker ...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-3580

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

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 versions 5.8.4 and earlier contain security vulnerabilities. These vulnerabilities stem from a 1-byte out-of-bounds hea...

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...

wolfssl:fuzzer-wolfssl-server-randomize: Heap-buffer-overflow in fuzzer_ticket_cb

Project: https://github.com/wolfssl/wolfssl.git Detailed Report: https://oss-fuzz.com/testcase?key=5623790192361472 Project: wolfssl Fuzzing Engine: libFuzzer Fuzz Target: fuzzer-wolfssl-server-randomize Job Type: libfuzzerasani386wolfssl Platform Id: linux Crash Type: Heap-buffer-overflow WRITE...

Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2025-13912)

The version of CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-13912 advisory. - Multiple constant-time implementations in wolfSSL before version 5.8.4 May be transformed into...

Azure Linux 3.0 Security Update: cmake (CVE-2024-2379)

The version of cmake installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-2379 advisory. - libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use...

CBL Mariner 2.0 Security Update: CBL-Mariner Releases (CVE-2025-13912)

The version of CBL-Mariner Releases installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-13912 advisory. - Multiple constant-time implementations in wolfSSL before version 5.8.4 May be transformed into...

CVE-2025-11624

creationtimestamp| type| source ---|---|--- 2026-01-09 17:52:18+00:00| seen| https://bsky.app/profile/wolfssl.com/post/3mbz2rv76u222...

CVE-2022-38152

An issue was discovered in wolfSSL before 5.5.0. When a TLS 1.3 client connects to a wolfSSL server and SSLclear is called on its session, the server crashes with a segmentation fault. This occurs in the second session, which is created through TLS session resumption and reuses the initial struct...