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Case File

CVE-2017-12871

MEDIUM · CVSS 5.9 EPSS 0.49% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2017-09-01 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

Exhibit — Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2017-12871
Severity
MEDIUM
CVSS
5.9
EPSS
0.49%

Original Filing — NVD 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).