What’s Vulnerable › Vulnerabilities
CVE-2025-9071: Insecure RSA-OAEP implementation with all-zero seed for padding in Oberon PSA Crypto
- Severity: low (CVSS 2.3 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-08-29 · updated 2026-10-18
- Weakness: CWE-780
Description
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 messages, and loss of security proofs.
Affected products
- Oberon microsystems AG Oberon PSA Crypto: from 1.0.0 through 1.5.1
References
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