CVE-2025-7071 — Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library

CVE-2025-7071

Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Oberon microsystems AG / ocrypto	affected 3.1.0 through 3.9.1

CWE

CWE-208, CWE-327

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.