Is CVE-2026-45447 in the CISA Known Exploited Vulnerabilities catalog?

CVE-2026-45447 is not currently listed in the CISA KEV catalog.

Vulnerability intelligence

CVE-2026-45447: OpenSSL heap use-after-free (CVSS 9.8)

CVE-2026-45447 is a critical heap use-after-free in OpenSSL's PKCS#7 verification — affecting 7 release branches. It was discovered by a researcher working with Claude AI.

CVSS 9.8 2026

What WebPulse reported · 1 analysis

An AI Found a CVSS 9.8 in OpenSSL. The Security Story Just Flipped.

CVE-2026-45447 is a critical heap use-after-free in OpenSSL's PKCS#7 verification — affecting 7 release branches. It was discovered by a researcher working with

June 12, 2026

View CVE-2026-45447 on the NIST National Vulnerability Database →

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