CVE-2017-12871

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CVSS 3.0

5.9 medium

EPSS

<1%p40

Published

Sep 1, 2017 (Sep 1, 2017)

Modified

Jun 17, 2026

Description

The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).

Vendors: simplesamlphp
Products: simplesamlphp
Weakness: CWE-326
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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