privilege-escalation
Safeguard articles tagged "privilege-escalation" — guides, analysis, and best practices for software supply chain and application security.
50 articles
Confluence Broken Access Control Zero-Day (CVE-2023-22515) Explained
CVE-2023-22515 let unauthenticated attackers create rogue administrator accounts on Confluence Data Center and Server. Here's the broken-access-control flaw and how to fix it.
What Is Privilege Escalation? A 2026 Explainer
Privilege escalation is how a limited foothold becomes full control. This explainer covers vertical vs. horizontal paths across Linux, containers, and cloud IAM.
Dirty Pipe (CVE-2022-0847) Explained: Overwriting Read-Only Files in the Linux Kernel
CVE-2022-0847, Dirty Pipe, let unprivileged users overwrite data in read-only files through an uninitialized pipe flag — a clean path to root. Here is the page-cache mechanism behind it.
Baron Samedit (CVE-2021-3156) Explained: The Sudo Root Overflow
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.
Cisco IOS XE CVE-2023-20198 Explained: The Web UI Privilege Escalation Zero-Day
CVE-2023-20198 is an unauthenticated privilege escalation in the Cisco IOS XE Web UI, rated CVSS 10.0, that let attackers implant tens of thousands of devices in days. Here is how it worked and how to remediate.
Zerologon: The Netlogon Cryptographic Flaw (CVE-2020-1472) Explained
CVE-2020-1472 let an unauthenticated attacker seize a domain controller in seconds by exploiting an all-zero AES-CFB8 initialization vector. Here's the real mechanism and the fix.
PwnKit (CVE-2021-4034) Explained: Root From a 12-Year-Old Polkit Bug
CVE-2021-4034, aka PwnKit, is a memory-corruption flaw in polkit's pkexec that gives any local user reliable root on nearly every Linux distribution. Here is how it works and how to close it.
CVE-2022-42919: Python's multiprocessing Privilege Escalation Explained
A local privilege escalation in Python's multiprocessing forkserver on Linux. Here is what CVE-2022-42919 does, which versions are affected, and how to remediate.
CVE-2021-22112: Improper authorization in Spring Security...
CVE-2021-22112 let Spring Security lose SecurityContext changes mid-request, an improper authorization flaw exposing OAuth2-secured apps to privilege escalation.
AWS IAM permissions boundaries best practices
How AWS IAM permissions boundaries cap delegated identities, differ from SCPs, and where teams get privilege escalation wrong.
CVE-2026-20262: Cisco Catalyst SD-WAN Manager Zero-Day File-Write Exploited in the Wild
Cisco confirmed limited in-the-wild exploitation of CVE-2026-20262, an arbitrary file-write zero-day in Catalyst SD-WAN Manager, alongside CVE-2026-20245. Here's what the chain actually buys an attacker and why edge management planes keep ending up on the KEV list.
Defender 'RoguePlanet' Zero-Day (CVE-2026-50656): SYSTEM on Fully Patched Windows
A race condition in Microsoft Defender, dubbed RoguePlanet, reportedly hands attackers SYSTEM privileges on fully updated Windows. We break down what is confirmed, what is still hedged, and what to do while the patch is in development.
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