CVE-2018-3646
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault…
Does this matter?
Lower severity and a low EPSS score (8.10%). Track it; it rarely justifies an emergency change on its own.
Description
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.
- CVSS 3.1
- 5.6 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 8.10% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- intel/core i3 · intel/core i5 · intel/core i7 · intel/core m · intel/core m3 · intel/core m5 · intel/core m7 · intel/xeon
- Source
- secure@intel.com
EPSS 8.1% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://support.lenovo.com/us/en/solutions/LEN-24163Third Party Advisory
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-enThird Party Advisory
- http://www.securityfocus.com/bid/105080Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041451Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1042004
- http://www.vmware.com/security/advisories/VMSA-2018-0020.htmlThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-273.htmlThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2384Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2387Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2388Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2389Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2390Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2391Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2392Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2393Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2394Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2395Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2396Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2402Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2403Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2404Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2602
- https://access.redhat.com/errata/RHSA-2018:2603
- https://cert-portal.siemens.com/productcert/pdf/ssa-254686.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
- https://foreshadowattack.eu/Technical Description, Third Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
- https://lists.debian.org/debian-lts-announce/2018/08/msg00029.html
- https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4UWGORQWCENCIF2BHWUEF2ODBV75QS2/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.