How severe is CVE-2025-7071?

CVE-2025-7071 has a CVSS 4.0 base score of 5.9, rated medium severity.

Is CVE-2025-7071 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-7071?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-7071 have an EU (EUVD) identifier?

Yes. CVE-2025-7071 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28779.

When was CVE-2025-7071 published?

CVE-2025-7071 was published on 2025-08-29 and last updated on 2026-06-17.

CVE-2025-7071

CVE-2025-7071 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.9. 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-208.

Key facts

Severity: Medium (CVSS 4.0 base score 5.9)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28779
Weakness: CWE-208
Published: 2025-08-29
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-7071?: CVE-2025-7071 has a CVSS 4.0 base score of 5.9, rated medium severity.
Is CVE-2025-7071 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-7071?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-7071 have an EU (EUVD) identifier?: Yes. CVE-2025-7071 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28779.
When was CVE-2025-7071 published?: CVE-2025-7071 was published on 2025-08-29 and last updated on 2026-06-17.

References

https://www.oberon.ch/security-advisories/cve-2025-7071/

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