CTI · reviewed · 2026-10-01

New TONTOU CPU Attack Bypasses Spectre v2 Mitigations, Leaks Linux Password Hashes

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MITRE ATT&CK

• T1003 OS Credential Dumping Credential Access

Indicators

No curated indicators tied to this case.

Detections

No detection content yet — case analysis did not yield signal-specific telemetry. Check back after the next daily CTI pass.

References

• https://malware.news/t/tontou-cpu-spectre-v2/124647#post_1
• https://www.bleepingcomputer.com/news/security/new-tontou-cpu-attack-bypasses-spectre-v2-fixes-leaks-linux-password-hashes/
• https://cyberpress.org/new-btr-spectre-v2-attack/
• https://www.theregister.com/security/2026/09/30/spectre-bug-is-back-this-time-to-haunt-jit-engines/5299937