Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
CVE-2021-26084 is an unauthenticated OGNL injection in Confluence Server and Data Center that allows remote code execution, rated CVSS 9.8. Here is the timeline, root cause, detection, and patched versions.
CVE-2022-26134 is a CVSS 9.8 unauthenticated OGNL injection in Atlassian Confluence, exploited as a zero-day before the patch. Here is how the flaw works and which versions fixed it.
CVE-2024-3094 was a deliberately planted backdoor in xz-utils 5.6.0/5.6.1 targeting sshd. It was caught by a 500ms delay one engineer refused to ignore. Here is how the attack worked.
CVE-2021-3156, Baron Samedit, is a heap overflow in sudo that gives any local user root and hid in plain sight for nearly a decade. Here is the root cause, a one-line test, and the patched version.
CVE-2024-21762 is a pre-authentication out-of-bounds write in the FortiOS SSL VPN daemon that allows remote code execution. Here is the timeline, root cause, detection, and the full list of fixed versions.
CVE-2022-30190, Follina, abused the Windows MSDT protocol handler so a Word document could run PowerShell — no macros, no enable-content click. Here is the ms-msdt mechanism.
CVE-2022-25845 defeated Fastjson's autoType protection and reopened a deserialization RCE path. Here's how the bypass worked and how to lock the library down.
CVE-2023-4863 was an actively exploited heap buffer overflow in libwebp's Huffman decoder. Because the codec is vendored everywhere, one bug forced emergency patches across browsers and apps.
CVE-2021-34527, PrintNightmare, let an authenticated attacker load a malicious printer driver through the Windows Print Spooler and execute code as SYSTEM — locally or across a domain.
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