CVE-2026-1005 Integer underflow leads to out-of-bounds access in sniffer AES-GCM/CCM/ARIA-GCM decrypt path

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-2026-1005

CVE-2026-1005 affects wolfSSL’s packet sniffer up to version 5.8.4. The root cause is an integer underflow: a 16‑bit length is wrapped to a large value and passed to AEAD decryption, causing a heap buffer overflow in the tls record processing path (ssl_DecodePacket). This yields a crash (denial o...

CVE-2026-1005 Integer underflow leads to out-of-bounds access in sniffer AES-GCM/CCM/ARIA-GCM decrypt path

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-2026-1005

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-2026-1005

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-2026-1005 Integer underflow leads to out-of-bounds access in sniffer AES-GCM/CCM/ARIA-GCM decrypt path

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-2026-1005

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

wolfSSL's CVE-2026-0819 is a stack buffer overflow in PKCS7 SignedData encoding. In wc_PKCS7_BuildSignedAttributes(), when adding custom attributes, EncodeAttributes() is given esd->signedAttribsCount instead of the remaining space in the fixed-size signedAttribs[7] array. If pkcs7->signedA...

CVE-2026-0819 Stack buffer overflow in PKCS7 SignedData encoding with custom signed attributes

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...

CVE-2026-0819

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...

CVE-2026-0819

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...

CVE-2026-0819 Stack buffer overflow in PKCS7 SignedData encoding with custom signed attributes

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...

CVE-2026-0819

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...

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-2026-26338

Name of the Vulnerable Software and Affected Versions wolfSSL versions 5.8.4 and earlier Description An out-of-bounds read issue exists in the ALPN Application-Layer Protocol Negotiation parsing functionality when ALPN is enabled. This occurs due to incomplete validation of the ALPN protocol list...

PT-2026-26322

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description A heap-buffer-overflow issue exists in the wolfSSL d2i SSL SESSION function. When deserializing session data with SESSION CERTS enabled, the lengths of certificate and session ID are read fro...

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...

PT-2026-26313

Name of the Vulnerable Software and Affected Versions wolfSSL versions prior to 5.8.4 Description An integer underflow in the packet sniffer component of wolfSSL allows an attacker to cause a buffer overflow in the AEAD decryption path. This occurs when a TLS record shorter than the expected leng...

PT-2026-26312

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description A stack buffer overflow issue exists in the PKCS7 SignedData encoding functionality of wolfSSL. Specifically, the wc PKCS7 BuildSignedAttributes function incorrectly calculates the capacity...

PT-2026-26366

Name of the Vulnerable Software and Affected Versions wolfSSL affected versions not specified Description A missing cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could compromise the confidentiality of TLS-protected communications. This occurs through a...