Vulnerability Analysis
In-depth guides and analysis on vulnerability analysis from the Safeguard engineering team.
577 articles
Cisco IOS XE CVE-2023-20198: Tens of Thousands of Devices Implanted
A critical zero-day in Cisco IOS XE's web UI allowed unauthenticated attackers to create admin accounts and deploy implants on over 40,000 devices worldwide.
curl CVE-2023-38545: The Worst curl Vulnerability in Years
A heap buffer overflow in curl's SOCKS5 proxy handshake earned a severity rating of HIGH from curl's creator Daniel Stenberg, who called it the worst curl flaw in a long time.
JetBrains TeamCity CVE-2023-42793: When Your Build Server Becomes the Attack Vector
A critical authentication bypass in TeamCity allowed unauthenticated attackers to gain admin access to CI/CD servers. State-sponsored groups exploited it to compromise software supply chains.
Progress WS_FTP CVE-2023-40044: Another File Transfer Platform Falls to Pre-Auth RCE
A critical deserialization vulnerability in Progress WS_FTP Server allowed unauthenticated RCE. Coming after MOVEit, it proved that file transfer platforms remain a systemic weak point.
PwnKit Five Years On: Why CVE-2021-4034 Still Lives in Production
PwnKit was a trivial local privilege escalation in polkit that affected nearly every Linux distribution for over a decade. The technical details and the residual risk in 2026.
WinRAR Zero-Day CVE-2023-38831: Weaponized Archives in the Wild
A WinRAR vulnerability exploited since April 2023 allowed attackers to execute arbitrary code when users opened seemingly harmless files inside ZIP archives.
SonicWall SMA 1000 CVE-2025-23006 Pre-Auth RCE
CVE-2025-23006 is a pre-auth deserialization RCE in SonicWall SMA 1000. Exploit chain, detection signals, and appliance hardening.
Ivanti EPMM Zero-Day CVE-2023-35078: Norwegian Government Breach
A critical authentication bypass in Ivanti's Endpoint Manager Mobile was exploited to breach Norwegian government agencies, earning a perfect CVSS 10.0 score.
Zenbleed: AMD CPU Vulnerability Leaks Data Across Processes (CVE-2023-20593)
A speculative execution bug in AMD Zen 2 processors allows attackers to steal sensitive data at 30KB per core per second, affecting cloud environments and shared infrastructure.
Citrix NetScaler Zero-Day CVE-2023-3519: Mass Exploitation in the Wild
CVE-2023-3519 allowed unauthenticated remote code execution on Citrix NetScaler ADC and Gateway devices, leading to widespread exploitation and CISA emergency directives.
Zimbra Collaboration CVE-2023-37580: XSS Zero-Day Exploited by Four Nation-State Groups
A reflected XSS vulnerability in Zimbra Collaboration was exploited by four distinct threat groups targeting government organizations worldwide. The campaign showed how even 'low severity' bugs enable espionage.
Microsoft Teams Vulnerability: External Tenant Attacks and the Collaboration Security Gap
Researchers demonstrated that Microsoft Teams' default configuration allowed external attackers to deliver malware directly to employees, bypassing email security controls entirely.
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