CVE-2026-3548

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,...

wolfssl:fuzzer-wolfssh-client-randomize: Memcpy-param-overlap in SendKexDhInit

Project: https://github.com/wolfssl/wolfssl.git Detailed Report: https://oss-fuzz.com/testcase?key=5582356961624064 Project: wolfssl Fuzzing Engine: libFuzzer Fuzz Target: fuzzer-wolfssh-client-randomize Job Type: libfuzzerasanwolfssl Platform Id: linux Crash Type: Memcpy-param-overlap Crash...

Linux Distros Unpatched Vulnerability : CVE-2026-1005

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

Linux Distros Unpatched Vulnerability : CVE-2026-0819

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A stack buffer overflow vulnerability exists in wolfSSL's PKCS7 SignedData encoding functionality. In wcPKCS7BuildSignedAttributes, when adding custom signed...

CVE-2026-3230

A flaw was found in wolfSSL. A remote attacker could exploit a missing cryptographic step in the Transport Layer Security TLS 1.3 client HelloRetryRequest handshake logic. By sending a crafted HelloRetryRequest followed by a ServerHello message that omits the required keyshare extension, an...

EUVD-2026-13233

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...

Linux Distros Unpatched Vulnerability : CVE-2026-3547

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

Linux Distros Unpatched Vulnerability : CVE-2026-2645

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In wolfSSL 5.8.2 and earlier, a logic flaw existed in the TLS 1.2 server state machine implementation. The server could incorrectly accept the CertificateVerify...

Linux Distros Unpatched Vulnerability : CVE-2026-3230

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of...

Linux Distros Unpatched Vulnerability : CVE-2026-3849

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a...

Linux Distros Unpatched Vulnerability : CVE-2026-2646

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSLd2iSSLSESSION function. When deserializing session data with SESSIONCERTS enabled, certificate a...

Linux Distros Unpatched Vulnerability : CVE-2026-4395

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Heap-based buffer overflow in the KCAPI ECC code path of wceccimportx963ex in wolfSSL wolfcrypt allows a remote attacker to write attacker-controlled data past...

Linux Distros Unpatched Vulnerability : CVE-2026-3229

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An integer overflow vulnerability existed in the static function wolfssladdtochain, that caused heap corruption when certificate data was written out of bounds ...

Linux Distros Unpatched Vulnerability : CVE-2026-4159

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

Information Exposure

Overview Affected versions of this package are vulnerable to Information Exposure in the muldi3 process. An attacker can infer sensitive cryptographic data by measuring execution time variations during cryptographic operations on RISC-V RV32I architectures. Remediation Upgrade wolfssl to version...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow due to improper handling of integer values in the wolfssladdtochain function. An attacker can cause heap corruption and potentially execute arbitrary code or crash the application by supplying specially crafte...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the wcPKCS7DecodeEnvelopedData function when processing a crafted CMS EnvelopedData message containing zero-length encrypted content. An attacker can cause a 1-byte out-of-bounds heap read by supplying such a...

CVE-2026-4159

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...

DEBIAN-CVE-2026-4159

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-2026-4159

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...