Researchers from CISPA have revealed a new hardware vulnerability named StackWarp affecting AMD Zen processors, which can compromise virtual machine security. This flaw allows attackers to hijack control, extract keys, and bypass security measures like SEV-SNP without direct memory access. #StackWarp #AMDZen #CVE202529943
Keypoints
- StackWarp exploits a synchronization failure in AMD Zen processors’ stack engine.
- The vulnerability enables remote code execution and privilege escalation within virtual machines.
- Attack scenarios include stealing cryptographic keys and bypassing VM memory protections like SEV-SNP.
- Malicious actors require privileged control over the host server to carry out the attacks.
- AMD has issued patches for affected EPYC models since July 2025 and assigned a low severity rating.
Read More: https://www.securityweek.com/new-stackwarp-attack-threatens-confidential-vms-on-amd-processors/