Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in Oberon PSA Crypto library
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Oberon microsystems AG | Oberon PSA Crypto | unaffected |
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Vendor Solution
Affected users should upgrade to Oberon PSA Crypto 1.5.1 or later.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-26194 | 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. |
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.089% probability within 30 days)
| Link | Providers |
|---|---|
| https://www.oberon.ch/security-advisories/cve-2025-7383/ |
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in Oberon PSA Crypto library | |
| Weaknesses | CWE-208 CWE-327 |
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| References |
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| Metrics |
cvssV4_0
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