THREATOPS

THREAT OPS › Threat News › [NVD] CVE-2026-45447 (HIGH 8.8) — Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#

[NVD] CVE-2026-45447 (HIGH 8.8) — Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#

lownvdPublished 2026-06-09

CVE-2026-45447 CVSS: 8.8 HIGH Published: 2026-06-09T17:17:19.277

Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification.

Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution.

When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAl

Indicators of compromise

CVE-2026-45447cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-45447