Dark: A Mythic C2 Agent with In-Memory BOF Execution on macOS and Linux, Part 1 · Minor Impact
The first open source Mythic C2 agent with a full in-memory BOF loader for macOS and Linux, including Apple Silicon. No fork and runs, no baked in capabilities.
Forgotten But Not Gone: RCEs in Legacy Linux Services | SafeBreach Research
SafeBreach Labs uncovered 3 severe flaws in Telnet and Samba, two CVSS 10.0 RCEs and a root privilege escalation, hiding in legacy Linux services for decades.
IonStack part III: Rooting Android 17 with GhostLock
GhostLock (CVE-2026-43499) is a Linux kernel vulnerability found by Nebula Security that exists in every major distribution since 2011. After turning it into a stable privilege escalation and container escape, we took one step further and used GhostLock to develop the world’s first public Android 17 root. This writeup covers the additional exploit techniques used to migrate the exploit for Android.
Escaping Linux Sandboxes via PipeWire's PulseAudio Socket (CVE-2026-5674)
This post walks through a sandbox escape from a Flatpak application via PipeWire. The vulnerability was discovered using my automated research pipeline with …
Fraggap (CVE-2026-53362) is a bug in the Linux UDPv6 corking path that allows a 15-byte OOB write into skb_shared_info. The code is here. {.markdown-image-centered} CONFIG_IPV6=y...
IonStack part II: GhostLock, a stack-UAF that has existed in ALL Linux distributions for 15 years
GhostLock (CVE-2026-43499) is a Linux kernel vulnerability found by VEGA that exists in every major distribution since 2011. Triggering the bug does not require any special kernel config or privilege. By turning it into a 97% stable privilege escalation and container escape, Google has rewarded us $92,337 in kernelCTF. This writeup covers the technical details of the exploit.
Dissecting and Exploiting Linux LPE Variant: DirtyClone (CVE-2026-43503) - JFrog Security Research
During an audit of recent Linux kernel patches, the JFrog Security Research team identified that despite fixes addressing the DirtyFrag vulnerability family, a residual issue remained unaddressed.
Off By !: Exploiting a Use-after-Free in the Linux Kernel - Exodus Intelligence
By Oliver Sieber Overview In this blog post, we discuss a use-after-free vulnerability that we found in the nftables subsystem of the Linux kernel in early 2025. This vulnerability was patched upstream on 5 February 2026 and assigned CVE-2026-23111. This blog post covers a technical analysis of the vulnerability and how we exploited it to perform a local ... Read more Off By !: Exploiting a Use-after-Free in the Linux Kernel
XBOW - Dead.Letter (CVE-2026-45185) How XBOW Found an Unauthenticated RCE on Exim
XBOW discovered CVE-2026-45185, a critical unauthenticated RCE in Exim, and used the disclosure window to test how far human and autonomous exploit development could go.
Virtual Memory: Page Tables, TLBs, and Linux Internals
How address translation, memory allocation, and physical topology shape the performance of data-intensive systems. Told through a dialogue between two processes
Launch WSL Applications from Windows with WslLaunch » TrainSec
Launch Linux processes from a Windows application using the WslLaunch API. Pavel walks through the call, the missing import library, and what the returned process handle actually points to.
The definitive red team guide to persistence across every platform: 50+ techniques across Windows (Registry, IFEO, SSP, Time Provider, Office T1137, Accessibility Features, Application Shimming), Scheduled Tasks, WMI, Services, DLL/COM/AppDomainManager, UEFI Bootkits, Active Directory (Golden/Diamond/Sapphire Ticket, AdminSDHolder, DCSync, DCShadow, Skeleton Key, DSRM, GPO), Linux (cron, systemd, SSH, PAM, eBPF rootkits, LKM, WSL), macOS (LaunchAgents, Login Items, Dylib Hijacking), and Cloud (Azure/AWS/GCP, Kubernetes). Real APT TTPs from Volt Typhoon, Salt Typhoon, Turla, Lazarus, APT29, APT28, APT41, UNC3944/Scattered Spider. Full OPSEC tradecraft.
A remote webpage can abuse an unauthenticated guest HTTP API to compromise the Windows guest container, then feed a malicious app entry leading to Linux host code execution on click.
How I used o3 to find CVE-2025-37899, a remote zeroday vulnerability in the Linux kernel’s SMB implementation
In this post I’ll show you how I found a zeroday vulnerability in the Linux kernel using OpenAI’s o3 model. I found the vulnerability with nothing more complicated than the o3 API ̵…
Duping Cloud Functions: An emerging serverless attack vector
Cisco Talos built on Tenable’s discovery of a Google Cloud Platform vulnerability to uncover how attackers could exploit similar techniques across AWS and Azure.
Authentication Bypass to RCE in Versa Concerto (0-Day) — ProjectDiscovery Blog
Introduction
Versa Concerto is a widely used network security and SD-WAN orchestration platform, designed to provide seamless policy management, analytics, and automation for enterprises. With a growing customer base that includes large enterprises, service providers, and government entities, the security of this platform is critical. Given its extensive adoption and potential exposure to external threats, we initiated research to assess its security posture and uncover possible vulnerabilities
[CVE-2025-37752] Two Bytes Of Madness: Pwning The Linux Kernel With A 0x0000 Written 262636 Bytes Out-Of-Bounds
CVE-2025-37752 is an Array-Out-Of-Bounds vulnerability in the Linux network packet scheduler, specifically in the SFQ queuing discipline. An invalid SFQ limit and a series of interactions between SFQ and the TBF Qdisc can lead to a 0x0000 being written approximately 256KB out-of-bounds at a misaligned offset. If properly exploited, this can enable privilege escalation.