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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 PKCS#7 decrypt operations.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e53f22f90bd23c55f7a4e4908f4661a2364e1ca7d2d6b59df579748663bd7aff
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-327","description":"CWE-327 Use of a Broken or Risky Cryptographic Algorithm","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-208","description":"CWE-208 Observable Timing Discrepancy","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","modules":["AES-CBC with PKCS#7 padding"],"product":"ocrypto","vendor":"Oberon microsystems AG","versions":[{"lessThanOrEqual":"3.9.1","status":"affected","version":"3.1.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-327","description":"CWE-327 Use of a Broken or Risky Cryptographic Algorithm","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-208","description":"CWE-208 Observable Timing Discrepancy","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.oberon.ch/security-advisories/cve-2025-7071/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:99c24c9ad9db5062b5479e92b2b051b5fe7dc0a53aac70340ce015416d12671c · sha256:e2ed9aca3d0ca96c… · /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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