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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e1abe38d8238e4fbeebd4d51b964fc480c7b01f92ca9706e448f543c79275f9c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Oberon PSA Crypto","vendor":"Oberon microsystems AG","versions":[{"changes":[{"at":"rsa_oaep_padding.patch","status":"unaffected"}],"lessThanOrEqual":"1.5.1","status":"affected","version":"1.0.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0ec5dd98fc458865cfb9a3a80db0536298e8cab72d207b9aacf210517ead039 · sha256:9a174b3f919f3ea7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NEGLIGIBLE","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":2.3,"baseSeverity":"LOW","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N/RE:L","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImp…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f0ec5dd98fc458865cfb9a3a80db0536298e8cab72d207b9aacf210517ead039 · sha256:9a174b3f919f3ea7… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-780","description":"CWE-780 Use of RSA Algorithm without OEAP","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0ec5dd98fc458865cfb9a3a80db0536298e8cab72d207b9aacf210517ead039 · sha256:9a174b3f919f3ea7… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.oberon.ch/security-advisories/cve-2025-9071/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0ec5dd98fc458865cfb9a3a80db0536298e8cab72d207b9aacf210517ead039 · sha256:9a174b3f919f3ea7… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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