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https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/software-and-content-updates/pan-os-software-updates.html
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https://www.bankinfosecurity.com/palo-alto-networks-patches-6-firewall-vulnerabilities-a-14977
https://zh-cn.tenable.com/blog/cve-2020-2040-critical-buffer-overflow-vulnerability-in-pan-os-devices-disclosed?tns_redirect=true
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https://www.security-database.com/detail.php?alert=CVE-2020-2040
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2040
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