CVE-2017-5926
By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.58% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- allwinner/a64 · amd/athlon ii 640 x4 · amd/e-350 · amd/fx-8120 8-core · amd/fx-8320 8-core · amd/fx-8350 8-core · amd/phenom 9550 4-core · intel/atom c2750 · intel/celeron n2840 · intel/core i5 m480 · intel/core i7-2620qm · intel/core i7-3632qm · intel/core i7-4500u · intel/core i7-6700k · intel/core i7 920 · intel/xeon e3-1240 v5 · intel/xeon e5-2658 v2 · nvidia/tegra k1 cd570m-a1 · nvidia/tegra k1 cd580m-a1 · samsung/exynos 5800
- Source
- cve@mitre.org
EPSS 1.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.cs.vu.nl/~herbertb/download/papers/anc_ndss17.pdfExploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/96457
- https://www.vusec.net/projects/ancExploit, Technical Description, Third Party Advisory
- http://www.cs.vu.nl/~herbertb/download/papers/anc_ndss17.pdfExploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/96457
- https://www.vusec.net/projects/ancExploit, Technical Description, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.