Padding Oracle Attack Vulnerability in Oberon PSA Crypto Library from Oberon Microsystems
CVE-2025-7383

5.9MEDIUM

Key Information:

Vendor
CVE Published:
29 August 2025

What is CVE-2025-7383?

The Oberon PSA Crypto library, developed by Oberon Microsystems, is vulnerable to a padding oracle attack across all versions from 1.0.0 to prior to 1.5.1. This vulnerability allows attackers to leverage timing measurements during AES-CBC PKCS#7 decrypt operations, potentially enabling them to recover sensitive plaintext data. The issue emphasizes the need for robust security practices and timely updates to safeguard against data breaches stemming from cryptographic vulnerabilities.

Affected Version(s)

Oberon PSA Crypto 1.0.0 <= 1.5.0

References

CVSS V4

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-7383 : Padding Oracle Attack Vulnerability in Oberon PSA Crypto Library from Oberon Microsystems