Friday 4 September
important2 findings, 15 signals6 min read

CrowdStrike remediation can be redirected from a standard Windows account into SYSTEM execution, while a physical Jetson attacker can reach a signed-initrd root shell and recover the encrypted-root key.

FalconFlank is public, independently reproduced and unpatched; NVIDIA fixed the initrd parser, but older vulnerable boot images remain acceptable.

Priority findings2
01
High
Privilege — Windows
Confirmed

FalconFlank turns a standard Windows user into SYSTEM through CrowdStrike remediation.

The complete exploit is public and independently reproduced, and no patch is available.

Affects

CrowdStrike Falcon Sensor deployments on Windows endpoints using the Microsoft Office suspicious-macro-removal prevention policy.

What it enables

Local privilege escalation from a standard user to SYSTEM

Run the public FalconFlank program as a standard Windows user.Stage an attacker DLL beneath a lookalike WindowsPowerShell path and coordinate the remediation race with an oplock.Replace the staged directory with a junction to the real System32 PowerShell directory and use the transacted-file path to overwrite bcrypt.dll.Wait for Falcon's MareBackup scheduled task, running as SYSTEM, to load the substituted DLL.Use the payload's named-pipe channel to execute commands as SYSTEM.
Why this matters

The change is a working escalation through the endpoint-defense workflow trusted to remediate hostile Office content, not merely another local race.

Detail, proof-of-concept code and 4 sources
Required access

Local unprivileged code execution on a Windows endpoint where Falcon's Microsoft Office File Suspicious Macro Removal policy is enabled

Affected versions

Current Windows 11 25H2 and Windows Server 2025 systems were reported affected; the public material does not identify an exact Falcon Sensor build range.

Proof of concept

Public exploit code

With Microsoft Office File Suspicious Macro Removal enabled, an unprivileged user can use junction, oplock and transacted-file races to redirect Falcon's privileged filesystem work into the protected PowerShell bcrypt.dll path.

The MareBackup scheduled task later loads the substituted DLL as SYSTEM, and the payload's named pipe accepts commands.

CrowdStrike acknowledged the investigation and recommends disabling the implicated prevention policy while keeping its other protection enabled; no patch was available at cutoff.

Evidence
The public repository and C++ source implement the complete standard-user-to-SYSTEM chain.Vega reports independent laboratory reproduction of SYSTEM command execution.CrowdStrike's public response acknowledged investigation and recommended disabling the implicated prevention policy while leaving other protection enabled.
Share this finding
02
Medium
Boot chain — Physical
Confirmed

Physical access to a Jetson can turn NVIDIA's signed initrd into a pre-boot root shell and reveal the LUKS key.

NVIDIA removed eval and added field validation, but older vulnerable boot images remain acceptable.

Affects

NVIDIA Jetson Linux, the board-support package and boot stack for Jetson Xavier, Orin, and Thor embedded edge-AI systems.

What it enables

Secure Boot bypass, pre-boot root execution and LUKS key disclosure

Obtain physical access to the Jetson device before the encrypted root filesystem is unlockedPlace a crafted opt/nvidia/cryptluks file on the plaintext boot partitionUse boot-time Device Manager to select that partition and a serial console through the kernel command lineNVIDIA's signed initrd parses the attacker-controlled enc_dm_name and evaluates it as shell syntaxReceive an interactive root shell while the LUKS trusted application remains availableQuery the trusted application and recover the root-filesystem LUKS key
Why this matters

This leads despite niche reach because one demonstrated device-in-hand path defeats both signed-boot execution integrity and encrypted-root secrecy, while the update does not make older vulnerable images unbootable.

Detail and 5 sources
Required access

Physical access to a Jetson device and its boot-time Device Manager

Affected versions

Jetson Linux 35.6.4, Jetson Linux 36.5.0, Jetson Linux 38.2.0, Jetson Linux 38.2.1, Jetson Linux 38.4.0, Jetson Linux 39.2.0, Jetson Linux 38.2.0 and 38.2.1, Jetson Linux 35.6.4 and earlier affected builds, Jetson Linux 36.5.0 and earlier affected builds

Proof of concept

Demonstrated by the researcher

Fix removes the capability

No

An attacker with the device can place a crafted cryptluks file on the plaintext boot partition and use Device Manager to feed its enc_dm_name value into eval inside the signed initrd.

That produces a root shell before disk unlock, from which the LUKS trusted application discloses the encrypted root filesystem's key.

The shipped parser change removes eval and validates the field, but the platform enforces no anti-rollback and continues accepting pre-fix images.

Evidence
ONEKEY demonstrated the complete chain on a live device with an already-encrypted root filesystem and showed the resulting root shell and access to the LUKS keyONEKEY inspected the shipped fixes and found removal of eval plus field validationA public NVIDIA advisory or CVE assignment was available by the run cutoff
Share this finding
Signals15
important · Virtualization

A VMware guest administrator can execute code in the host virtualization process.

Affects

VMware Workstation on Windows or Linux hosts and VMware Fusion on macOS, which run desktop virtual machines.

Crafted guest input reaches an integer overflow in VMXNET3 or a stack buffer overflow in HGFS, crossing Workstation or Fusion's guest boundary into host-side code execution.

Detail and 3 sources
important · Database privilege

A PostgreSQL replication role can load native code and establish persistent database-superuser control.

Affects

PostgreSQL database servers on Windows, Linux and macOS, including installations using logical replication, backup or change-data-capture accounts.

The replication protocol accepted an unrestricted logical-decoding plugin path, allowing a non-superuser REPLICATION role to load a chosen library as the PostgreSQL operating-system account.

Detail and 2 sources

The attacker still needs a library-delivery route: Cyera demonstrated an SMB-hosted DLL on Windows, while NFS automounts or a separate file-write primitive can supply the path elsewhere.

Once loaded, the library can modify pg_authid and install persistent superuser access.

Fixed releases are available, but anti-rollback is not enforced and pre-fix images remain accepted.

important · Identity

Read-only Entra roles could obtain Connect Health agent secrets and write hybrid-monitoring telemetry.

Affects

Microsoft Entra Connect Health, the Microsoft-hosted monitoring service for on-premises Entra Connect Sync, AD FS, and AD DS agents.

Global Reader—and Security Reader for the demonstrated AD FS path—could invoke credentials/read, receive the live AgentKey and disconnect the legitimate agent when the read rotated that key.

Detail and 1 source

The stolen key minted an agent bearer token and exposed write-capable Event Hub and Blob credentials for forged telemetry or monitoring disruption.

The report found no broader Graph, Key Vault, ARM or storage-read pivot, and remediation remained partial without complete revocation.

important · Automation

Delegated Jenkins configuration access can reach controller-side script execution.

Affects

Jenkins, a Java-based automation and continuous-integration controller commonly entrusted with build credentials and artifact production.

A crafted config.xml can deserialize a nested PersistenceRoot object, expose its Stapler routes and reach the improperly protected Script Console in the controller process.

Detail and 1 source

Jenkins published fixed releases, and no public exploit code was located by the cutoff.

important · Image processing

A crafted HEIF file gives libheif an attacker-controlled heap overwrite and target-specific server code execution.

Affects

libheif, a cross-platform HEIF/AVIF decoding library used by Linux applications, Android apps that bundle it, and server-side image pipelines.

In the uncompressed codec, mismatched Cb and Cr bit depths cause two-byte attacker-selected samples to overrun a one-byte chroma plane.

Detail and 2 sources

The researcher converted it into file disclosure and PHP execution only on an exact Debian and WordPress target that also required a valid Author account.

Portable execution across arbitrary consumers was not demonstrated; a patch exists but was not assessed for this brief.

important · Edge

Any authenticated BIG-IP or BIG-IQ management role can create an administrator.

Affects

F5 BIG-IP application-delivery and security appliances and BIG-IQ centralized management systems through their management interfaces.

An undisclosed TMUI request fails to enforce the caller's role, allowing even the lowest authenticated management role to mint a persistent administrator identity.

Detail and 2 sources
important · Edge

SonicWall reports exploitation of an SMA1000 pre-authentication proxy path; a separate OS command-injection path requires an administrator.

Affects

SonicWall SMA1000 enterprise SSL-VPN gateways, including physical SMA 6210/7210 appliances and the SMA 8200v virtual appliance.

The first flaw lets an unauthenticated WorkPlace client proxy requests toward internal services, while the second injects commands through the administrator-only Appliance Management Console.

Detail and 2 sources
Composition to watch
Use the pre-authentication WorkPlace path to proxy requests toward internal services.Obtain an administrator session through a route not established in public material.Invoke the Appliance Management Console command-injection endpoint.Public material does not establish that the pre-authentication proxy path supplies the administrator state required by the command-injection endpoint.
Unverified compositionObtain a forensic chain or reproducer showing the proxy path reaching an authentication primitive and then the management-console injection.

We do not know whether the proxy path can supply the administrator state needed for command injection, so the public record does not establish unauthenticated code execution.

SonicWall published fixes, but their implementation was not assessed for this brief.

important · Physical

Backside optical probing can recover plaintext partial bitstreams from an encrypted AMD 7-Series FPGA.

Affects

AMD 7-Series FPGAs, programmable devices used in embedded systems; demonstrated on an XC7A200T Artix-7 and believed by AMD to apply to similarly configured 7-Series and Zynq-7000 devices.

With the chip in hand, backside die access and specialized optical equipment, researchers observed data after decryption as it crossed ICAP and recovered plaintext from an XC7A200T.

Detail and 1 source

Broader 7-Series and Zynq-7000 applicability is stated only in principle, and no fix is available.

important · Supply chain

Public Docker Hub image layers exposed live operational credentials.

Affects

Public Docker Hub images published under Apache, GitLab, Okteto-related, SAP, and Toradex namespaces, with credentials authorizing access to external cloud services.

Unauthenticated image pulls exposed credentials for Apache GitHub, Okteto Terraform, Toradex Slack, GitLab CI and an OpenAI account; validation found administrative or write-capable access among the strongest cases.

Detail and 7 sources
important · Bluetooth

A nearby malicious AVRCP target can drive attacker-controlled stack writes in root-owned bluetoothd 5.87.

Affects

BlueZ 5.87, the Linux Bluetooth userspace stack and its root-owned bluetoothd daemon.

After the victim actively connects, a response count of 255 writes 251 attacker-selected bytes beyond a four-byte stack array and feeds the same count toward a second oversized copy.

Detail and 2 sources

Researchers demonstrated the first overwrite over the air, but not instruction-pointer control on a hardened distribution build.

Composition to watch
Pair a malicious AVRCP target with a hardened BlueZ 5.87 distribution build.Reach the first overwrite and determine whether execution continues into the second copy.Vary attacker-controlled attribute bytes and measure influence over saved control data.Execution through the second overflow and instruction-pointer control on a hardened distribution build remain unproved.
Unverified compositionReproduce the exchange on hardened BlueZ 5.87 builds and vary the returned attributes to test second-sink reachability and saved-control-data influence.

No patch was available by the cutoff.

important · Zero-click

An unauthenticated RDP peer can execute code in GNOME Remote Desktop 51 pre-release Remote Login.

Affects

GNOME Remote Desktop 51 pre-release Remote Login deployments on Linux distributions embedding FreeRDP 3.28 through 3.30.

A rejected negotiation continues into a disabled security mechanism, after which a heap disclosure supplies addresses for a controlled eight-byte overwrite of a live function-pointer-bearing object.

Detail and 4 sources
important · Image processing

Crafted tiled HEIF files still crash libheif after the earlier tile fix.

Affects

libheif, a cross-platform HEIF/AVIF library, when used by tiled-image viewers, converters, thumbnailers, or server pipelines through its tile-decoding API.

A missed sibling branch wraps tile-offset arithmetic to zero and calls memcpy with an invalid pointer and a one-terabyte length; the public reproducer crashed three clean runs out of three.

Detail and 2 sources
important · Wi-Fi

A LAN observer can recover an Archer AX55 administrator password from a captured login.

Affects

TP-Link Archer AX55 V4, an embedded Wi-Fi 6 home router.

Affected firmware combines a firmware-wide RSA-1024 private key with weakened AES session-key construction, allowing an observer of the HTTP management login to decrypt the password.

Detail and 3 sources
important · Wi-Fi

An unauthenticated TL-MR100 LAN request can overwrite saved control-flow data in httpd.

Affects

TP-Link TL-MR100 V3.20, an embedded 4G LTE Wi-Fi router.

A crafted encrypted request to /cgi/login triggers a stack overflow before authentication and overwrites saved control-flow data.

Detail and 3 sources
important · Wi-Fi

Crafted LAN input can crash the Archer AX55 EasyMesh daemon.

Affects

TP-Link Archer AX55 V4, an embedded Wi-Fi 6 home router running an EasyMesh daemon.

When Mesh mode is enabled, unauthenticated LAN input reaches a stack-based overflow and terminates easymesh; code execution remains unproved.

Detail and 3 sources
Also noted0

No additional findings today.

What was checked · 2 quiet, 1 not fully checked
FirmwareQuiet

The Jetson boot chain and FPGA plaintext recovery changed physical-device capability; SMA1000 exploitation remained a pair of publicly unlinked primitives.

Physical accessQuiet

Physical possession now enables a practical Jetson root-and-key chain and laboratory-grade plaintext recovery from an encrypted AMD FPGA.

MobilePartly checked

Canva transferred authenticated session authority to an external WebView origin, while libheif added one target-specific overwrite chain and one residual crash path.

Get it by email

The same brief, every morning. One email a day, nothing else.

fullchain.sh follows the day’s disclosures from bug to shell — what each one enables, what it links to, and where the fix left the primitive in place.

Friday, September 4, 2026