CVE-2025-7071

Padding oracle attack vulnerability in Oberon microsystem AG’s ocrypto library in all versions since 3.1.0 and prior to 3.9.2 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-9071

Erroneously using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, in Oberon microsystems AG’s Oberon PSA Crypto library in all versions up to 1.5.1, results in deterministic RSA and thus in a loss of confidentiality for guessable messages, recognition of repeated...

CVE-2025-7383

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 1.5.1 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-9071

Erroneously using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, in Oberon microsystems AG’s Oberon PSA Crypto library in all versions up to 1.5.1, results in deterministic RSA and thus in a loss of confidentiality for guessable messages, recognition of repeated...

CVE-2025-7383

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 1.5.1 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-7071

Padding oracle attack vulnerability in Oberon microsystem AG’s ocrypto library in all versions since 3.1.0 and prior to 3.9.2 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-9071

The CVE-2025-9071 entry concerns Oberon Microsystems’ Oberon PSA Crypto library (all versions up to 1.5.1). The root cause is using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, making RSA deterministic. This leads to confidentiality loss for guessable messages, rec...

CVE-2025-9071 Insecure RSA-OAEP implementation with all-zero seed for padding in Oberon PSA Crypto

Erroneously using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, in Oberon microsystems AG’s Oberon PSA Crypto library in all versions up to 1.5.1, results in deterministic RSA and thus in a loss of confidentiality for guessable messages, recognition of repeated...

CVE-2025-9071 Insecure RSA-OAEP implementation with all-zero seed for padding in Oberon PSA Crypto

Erroneously using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, in Oberon microsystems AG’s Oberon PSA Crypto library in all versions up to 1.5.1, results in deterministic RSA and thus in a loss of confidentiality for guessable messages, recognition of repeated...

CVE-2025-7383 Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in Oberon PSA Crypto library

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 1.5.1 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-7383 Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in Oberon PSA Crypto library

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 1.5.1 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-7383

The CVE-2025-7383 entry concerns Oberon PSA Crypto library. A padding oracle timing side-channel affects AES-CBC PKCS#7 decryption, exploitable via timing measurements. Affected versions are 1.0.0 through 1.5.0; versions 1.5.1 and later are not affected. Impact is plaintext recovery with local ti...

CVE-2025-7071 Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library

Padding oracle attack vulnerability in Oberon microsystem AG’s ocrypto library in all versions since 3.1.0 and prior to 3.9.2 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-7071 Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library

Padding oracle attack vulnerability in Oberon microsystem AG’s ocrypto library in all versions since 3.1.0 and prior to 3.9.2 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

CVE-2025-7071

The CVE concerns Oberon microsystems AG ocrypto library. A padding oracle timing side-channel in AES-CBC decryption with PKCS#7 padding exists for ocrypto versions 3.1.0 through 3.9.1 (i.e., all versions since 3.1.0 up to but not including 3.9.2). Attackers could recover plaintexts by measuring d...

PT-2025-35197

Name of the Vulnerable Software and Affected Versions: Oberon PSA Crypto Library versions prior to 1.6 Description: The software uses an all-zero seed for RSA-OEAP padding instead of generated random bytes. This results in deterministic RSA, leading to a loss of confidentiality for guessable...

Oberon Microsystem AG ocrypto library security vulnerabilities

Oberon microsystem AG ocrypto library is a cryptographic software library from the Swiss company Oberon. A security vulnerability exists in Oberon microsystem AG ocrypto library versions prior to 1.0.0 through 1.5.1, which stems from a padding predicate attack on the AES-CBC PKCS7 decryption...

PT-2025-35196

Name of the Vulnerable Software and Affected Versions: Oberon PSA Crypto library versions 1.0.0 through 1.5.0 Description: A padding oracle attack allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations. Recommendations: Update to version 1.5.1 or late...

CVE-2025-7383: Observable Timing Discrepancy

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 1.5.1 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations...

PT-2025-35195

Name of the Vulnerable Software and Affected Versions: ocrypto versions 3.1.0 through 3.9.1 Description: A padding oracle attack allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS7 decrypt operations. Recommendations: Update to a version later than 3.9.1...