Fabian Rauscher

Offensive Security Researcher · TU Graz

I'm an offensive security researcher and postdoc in the CoreSec group at TU Graz, where I did my PhD with Daniel Gruss. I work on low-level systems security, mainly side channels and microarchitectural attacks on CPUs, trusted execution environments like Intel TDX, and hypervisors. I also teach operating systems, system-level programming, and hypervisor development.

Security Advisories

CVE-2025-20613 Intel TDX firmware INTEL-SA-01312 Paper
CVE-2024-36353 AMD GPU memory leakage AMD-SB-6019
CVE-2024-39920 TCP timing side channel Code Paper

Publications

2026

FROST: Fingerprinting Remotely using OPFS-based SSD Timing

Hannes Weissteiner, Tobias Weiser, Roland Czerny, Sudheendra Raghav Neela, Fabian Rauscher, Jonas Juffinger, Daniel Gruss

DIMVA '26 (AR: 21.9%) PDF BibTeX

Advancing CPU Security through Attack Discovery and Systematization

Fabian Rauscher

Assessors: Daniel Gruss, Jo Van Bulck

PhD Thesis Graz University of Technology, May 2026 PDF BibTeX

TELESCOPE: TDX Exploit Leaking Encrypted Data using Sibling Core Performance Counters

Fabian Rauscher, Hannes Weissteiner, Daniel Gruss

ASIA CCS '26 (AR: 22.4%) PDF BibTeX

2025

WaitWatcher & WaitGuard: Detecting Flush-Based Cache Side-Channels through Spurious Wakeups

Lukas Lamster, Fabian Rauscher, Martin Unterguggenberger, Stefan Mangard

ESORICS '25 (AR: 16.5%) PDF BibTeX

Verifying DRAM Addressing in Software

Martin Heckel, Florian Adamsky, Jonas Juffinger, Fabian Rauscher, Daniel Gruss

ESORICS '25 (AR: 16.5%) PDF BibTeX

TDXploit: Novel Techniques for Single-Stepping and Cache Attacks on Intel TDX

Fabian Rauscher, Luca Wilke, Hannes Weissteiner, Thomas Eisenbarth, Daniel Gruss

USENIX Security '25 (AR: 17.1%) Distinguished Paper Award, Honorable Mention CVE-2025-20613 PDF BibTeX Code Artifact

TEEcorrelate: An Information-Preserving Defense against Performance-Counter Attacks on TEEs

Hannes Weissteiner, Fabian Rauscher, Robin Leander Schröder, Jonas Juffinger, Stefan Gast, Jan Wichelmann, Thomas Eisenbarth, Daniel Gruss

USENIX Security '25 (AR: 17.1%) PDF BibTeX Artifact

Systematic Analysis of Kernel Security Performance and Energy Costs

Fabian Rauscher, Benedict Herzog, Timo Hönig, Daniel Gruss

ASIA CCS '25 (AR: 20.4%) PDF BibTeX

A Systematic Evaluation of Novel and Existing Cache Side Channels

Fabian Rauscher, Carina Fiedler, Andreas Kogler, Daniel Gruss

NDSS '25 (AR: 16.5%) PDF BibTeX

Secret Spilling Drive: Leaking User Behavior through SSD Contention

Jonas Juffinger, Fabian Rauscher, Giuseppe La Manna, Daniel Gruss

NDSS '25 (AR: 16.5%) PDF BibTeX

2024

Cross-Core Interrupt Detection: Exploiting User and Virtualized IPIs

Fabian Rauscher, Daniel Gruss

CCS '24 (AR: 16.7%) PDF BibTeX

SnailLoad: Exploiting Remote Network Latency Measurements without JavaScript

Stefan Gast, Roland Czerny, Jonas Juffinger, Fabian Rauscher, Simone Franza, Daniel Gruss

USENIX Security '24 (AR: 18.3%) CVE-2024-39920 PDF BibTeX Code

Generic and Automated Drive-by GPU Cache Attacks from the Browser

Lukas Giner, Roland Czerny, Christoph Gruber, Fabian Rauscher, Andreas Kogler, Daniel De Almeida Braga, Daniel Gruss

ASIA CCS '24 (AR: 22.1%) Best Paper PDF BibTeX

IdleLeak: Exploiting Idle State Side Effects for Information Leakage

Fabian Rauscher, Andreas Kogler, Jonas Juffinger, Daniel Gruss

NDSS '24 (AR: 20.6%) PDF BibTeX

2023

DOPE: DOmain Protection Enforcement with PKS

Lukas Maar, Martin Schwarzl, Fabian Rauscher, Daniel Gruss, Stefan Mangard

ACSAC '23 (AR: 23.3%) PDF BibTeX

2022

GPU Cache Attacks

Fabian Rauscher

Master's Thesis Graz University of Technology, November 2022 PDF BibTeX