CVE-2025-9071

CVE-2025-9071 is a low-severity vulnerability with a CVSS 4.0 base score of 2.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-780.

Key facts

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.

Frequently asked questions

What is 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 messages, and loss of security proofs.
How severe is CVE-2025-9071?
CVE-2025-9071 has a CVSS 4.0 base score of 2.3, rated low severity.
Is CVE-2025-9071 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-9071?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9071 have an EU (EUVD) identifier?
Yes. CVE-2025-9071 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26195.
When was CVE-2025-9071 published?
CVE-2025-9071 was published on 2025-08-29 and last updated on 2026-06-17.

References