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8.1HIGHCISA KEV — actively exploited

CVE-2025-9103 — OpenSSL 3.x Memory Corruption

OpenSSL Foundation · OpenSSL 3.x · Published 14 Sept 2025 · Modified 2 Oct 2025

Description

Memory corruption vulnerability in OpenSSL 3.x when processing certain certificate chains.

What to do
  1. Check whether OpenSSL 3.x is in your asset inventory.
  2. Exploitation confirmed — patch within 72 hours.
  3. Record the decision in your risk register for audit evidence.
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Link: adminadda.com/cve/CVE-2025-9103