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CVE Vulnerability Details :
CVE-2025-7383
PUBLISHED
More InfoOfficial Page
Assigner-NCSC.ch
Assigner Org ID-455daabc-a392-441d-aa46-37d35189897c
View Known Exploited Vulnerability (KEV) details
Published At-29 Aug, 2025 | 09:19
Updated At-29 Aug, 2025 | 13:46
Rejected At-
▼CVE Numbering Authority (CNA)
Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in Oberon PSA Crypto library

Padding oracle attack vulnerability in Oberon microsystem AG’s Oberon PSA Crypto library in all versions since 1.0.0 and prior to 1.5.1 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS#7 decrypt operations.

Affected Products
Vendor
Oberon microsystems AG
Product
Oberon PSA Crypto
Modules
  • AES-CBC with PKCS#7 padding
Default Status
unaffected
Versions
Affected
  • From 1.0.0 through 1.5.0 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-208CWE-208 Observable Timing Discrepancy
CWECWE-327CWE-327 Use of a Broken or Risky Cryptographic Algorithm
Type: CWE
CWE ID: CWE-208
Description: CWE-208 Observable Timing Discrepancy
Type: CWE
CWE ID: CWE-327
Description: CWE-327 Use of a Broken or Risky Cryptographic Algorithm
Metrics
VersionBase scoreBase severityVector
4.05.9MEDIUM
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
Base score: 5.9
Base severity: MEDIUM
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-463CAPEC-463 Padding Oracle Crypto Attack
CAPEC ID: CAPEC-463
Description: CAPEC-463 Padding Oracle Crypto Attack
Solutions

Affected users should upgrade to Oberon PSA Crypto 1.5.1 or later.

Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.oberon.ch/security-advisories/cve-2025-7383/
N/A
Hyperlink: https://www.oberon.ch/security-advisories/cve-2025-7383/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found