PatchTheCVECVE-2017-5926: Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last
CVE-2017-5926 is a high-severity flaw (CVSS 7.5) affecting a64, athlon ii 640 x4, e-350. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern AMD processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.6% (top 24%) |
| CISA exploited list | No |
| Weakness | CWE-200 |
| Published | 2017-02-27 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-5926?
a64: mitigate or apply the listed mitigation; athlon ii 640 x4: mitigate or apply the listed mitigation; e-350: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2017-5926 being exploited?
CVE-2017-5926 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-5926 affect?
CVE-2017-5926 affects a64, athlon ii 640 x4, e-350. Severity is high (CVSS 7.5). Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern AMD processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and
How urgent is CVE-2017-5926?
Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
Software pages
Related CVEs
- CVE-2017-5927 HIGH 7.5 MITIGATE MITIGATE Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last
- CVE-2017-5925 HIGH 7.5 MITIGATE MITIGATE Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last