cve-writeups-and-pocs

CVE-2026-80724 PoC y Write-up CVE-2026-80724 — Kernel de Linux ptp: vmclock: evitar que los mapeos de solo lectura se vuelvan escribibles Prueba de concepto completa + Write-up técnico Investigación de seguridad por Abdifatah Suruur suruur — colección de write-ups de CVE y PoCs para...

ShellcodeFluctuation

Shellcode Fluctuation PoC Una implementación de prueba de concepto para otra técnica de evasión en memoria que cifra y descifra cíclicamente el contenido del shellcode para luego hacerlo fluctuar entre la protección de memoria RW o NoAccess y RX. Cuando nuestro shellcode reside en páginas de...

HeapCrypt

HeapCrypt Crittografare l'Heap durante il sonno intercettando e modificando Sleep con una nostra funzione che crittografa l'heap, dorme per un momento e poi decrittografa l'heap: Crittografia xor dell'heap con chiave a 16 bit : Decrittografia xor dell'heap con chiave a 16 bit : Riferimenti :...

ifuncd-up

Em Resposta ao Hacker News Vejo que vocês, brincalhões do site laranjahn, estão me enchendo o saco. Farei algumas respostas abaixo, mas primeiro ofereço um desafio: enviarei $500 do meu próprio dinheiro para a primeira pessoa que demonstrar este ataque sem ifunc. Estou genuinamente interessado e...

Agent-Tesla-APC-Injection-Token-Manipulation-Registry-Persistence-Analysis

1. Native API & APC-Injektion Der x64dbg-Speicherabbild zeigt, dass Agent Tesla Native-API-Aufrufe NT API für Low-Level-Operationen verwendet, einschließlich der APC-Injektion Asynchronous Procedure Call. Beobachtete Schlüsselfunktionen: NtQueueApcThread – Injiziert Code über APC in einen...

NovaHypervisor

NovaHypervisor Descrizione NovaHypervisor è un hypervisor difensivo basato su host Intel x64. L'obiettivo di questo progetto è proteggere da attacchi a livello kernel tramite Bring Your Own Vulnerable Driver BYOVD o altri mezzi salvaguardando i prodotti di difesa Antivirus / Protezione endpoint e...

memguard

MemGuard Software enclave for storage of sensitive information in memory. This package attempts to reduce the likelihood of sensitive data being exposed when in memory. It aims to support all major operating systems and is written in pure Go. Features Sensitive data is encrypted and authenticated...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: The risk of out-of-memory access has been prevented. The dvbdev module contains a static variable used to store dvb minors. Its behavior depends on whether CONFIGDVBDYNAMICMINORS is set or not. When it is not set,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: KVM: x86: Added SRCU protection for reading PDPTRs in getsregs2. Added read-side protection when reading PDPTR registers in getsregs2. Reading PDPTRs may trigger access to guest memory: kvmpdptrread - svmcachereg - loadpdptrs ...

Astra Linux – Vulnerability in amd64-microcode

IOMMU improperly handles certain special address ranges with invalid device table entries DTEs. This may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially resulting in a loss of guest integrity...

CVE-2026-72279

A flaw was found in the KVM Kernel-based Virtual Machine component of the Linux kernel. KVM on arm64 architectures incorrectly maps the L1 Virtual Nested Control Register VNCR into the host stage-1, failing to respect read-only memory regions. This could allow a malicious guest to write to a...

CVE-2026-72155 mtd: spi-nor: swp: Improve locking user experience

In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: swp: Improve locking user experience In the case of the first block being locked or the few first blocks, if the user want to fully unlock the device it has two possibilities: - either it asks to unlock the entire...

CVE-2025-31936

Improper handling of overlap between protected memory ranges for some IntelR XeonR 6 processors when using IntelR TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may...

EUVD-2026-55356

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: bound EDID block reads to the response buffer virtiogetedidblock validates the read offset only against the device-supplied resp-size field, never against the fixed-size resp-edid array. The EDID block index is driven...

SUSE-SU-2026:3166-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2023-20585: iommu/amd: Use maximum Event log buffer size when SNP is enabled on Family 0x19 bsc1243603. - CVE-2025-71302: drm/panthor: fix for dma-fence safe access...

CVE-2026-63830

A flaw was found in the Linux kernel's skmsg networking component. This vulnerability arises when the sg.copy bitmap, which controls memory access permissions, is not properly maintained during data transformations. This can allow a local attacker to bypass memory protection mechanisms, enabling...

SUSE-SU-2026:22755-1 Security update for the Linux Kernel (Live Patch 0 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.5.1 fixes various security issues The following security issues were fixed: - CVE-2025-71089: iommu: disable SVA when CONFIGX86 is set bsc1256615. - CVE-2026-23393: bridge: cfm: Fix race condition in peermep deletion bsc1260524. -...

CVE-2026-10669

Summary (CVE-2026-10669) : On Xtensa SoCs with CONFIG_XTENSA_MPU and CONFIG_USERSPACE, arch_buffer_validate() erroneously permits access when the buffer size rounds to a wrap of the 32-bit address space, bypassing MPU checks. This can let an unprivileged user-thread validate or copy memory it sho...

CVE-2026-10669 Xtensa MPU `arch_buffer_validate()` integer-overflow lets a user thread bypass syscall pointer validation

On Xtensa SoCs built with CONFIGXTENSAMPU and CONFIGUSERSPACE, archbuffervalidate in arch/xtensa/core/mpu.c — the architecture hook that verifies a user-mode-supplied buffer is accessible to the calling user thread with the requested permission — defaulted its return value to 0 access permitted a...

PT-2026-60097

Name of the Vulnerable Software and Affected Versions nebula-mesh affected versions not specified Description The web handler renderMobileBundle passes a pki.CAResolver to the mobilebundle.Build function, which decrypts the CA's ed25519 private key into a pki.CAManager. However, the Build functio...