CVE-2018-3665

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.

Published: 2018-06-21 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-3665 is rated Moderate Risk (52.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.83%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-3665

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-02 1.26% 1.83% +0.57%
2 2025-12-28 1.61% 1.26% -0.35%
3 2025-12-27 — 1.61% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-3665

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.6 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.1 4.0 [email protected]
4.7 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 6.9 [email protected]

Weakness enumeration for CVE-2018-3665

OS Trackers for CVE-2018-3665

vendor priority summary link
alpine medium CVE-2018-3665: 1 source package rows (xen); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2018-3665
debian not yet assigned CVE-2018-3665 not yet assigned priority: Debian including 2 source packages (linux, xen), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2018-3665
redhat medium — https://access.redhat.com/security/cve/CVE-2018-3665
suse medium CVE-2018-3665 severity moderate: SUSE including 612 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 977 product×package rows across 79 product lines (SUSE Enterprise Storage 4, SUSE Enterprise Storage 7.1, … (79 product lines)): Fixed 669, Known Affected 157, Known Not Affected 151. https://www.suse.com/security/cve/CVE-2018-3665/
ubuntu medium CVE-2018-3665 medium priority: Ubuntu including 94 source packages (linux, linux-aws, …), 819 status rows across 11 suites (artful, bionic, cosmic, focal, jammy, noble, oracular, plucky, trusty, upstream, xenial): DNE 551, not-affected 152, released 101, ignored 15. https://ubuntu.com/security/CVE-2018-3665

Affected software / configurations for CVE-2018-3665

Vendor Product Version Raw CPE
intel core_i3 330e cpe:2.3:h:intel:core_i3:330e:*:*:*:*:*:*:*
intel core_i3 330m cpe:2.3:h:intel:core_i3:330m:*:*:*:*:*:*:*
intel core_i3 330um cpe:2.3:h:intel:core_i3:330um:*:*:*:*:*:*:*
intel core_i3 350m cpe:2.3:h:intel:core_i3:350m:*:*:*:*:*:*:*
intel core_i3 370m cpe:2.3:h:intel:core_i3:370m:*:*:*:*:*:*:*
intel core_i3 380m cpe:2.3:h:intel:core_i3:380m:*:*:*:*:*:*:*
intel core_i3 380um cpe:2.3:h:intel:core_i3:380um:*:*:*:*:*:*:*
intel core_i3 390m cpe:2.3:h:intel:core_i3:390m:*:*:*:*:*:*:*
intel core_i3 530 cpe:2.3:h:intel:core_i3:530:*:*:*:*:*:*:*
intel core_i3 540 cpe:2.3:h:intel:core_i3:540:*:*:*:*:*:*:*
intel core_i3 550 cpe:2.3:h:intel:core_i3:550:*:*:*:*:*:*:*
intel core_i3 560 cpe:2.3:h:intel:core_i3:560:*:*:*:*:*:*:*
intel core_i3 2100 cpe:2.3:h:intel:core_i3:2100:*:*:*:*:*:*:*
intel core_i3 2100t cpe:2.3:h:intel:core_i3:2100t:*:*:*:*:*:*:*
intel core_i3 2102 cpe:2.3:h:intel:core_i3:2102:*:*:*:*:*:*:*
intel core_i3 2105 cpe:2.3:h:intel:core_i3:2105:*:*:*:*:*:*:*
intel core_i3 2115c cpe:2.3:h:intel:core_i3:2115c:*:*:*:*:*:*:*
intel core_i3 2120 cpe:2.3:h:intel:core_i3:2120:*:*:*:*:*:*:*
intel core_i3 2120t cpe:2.3:h:intel:core_i3:2120t:*:*:*:*:*:*:*
intel core_i3 2125 cpe:2.3:h:intel:core_i3:2125:*:*:*:*:*:*:*
intel core_i3 2130 cpe:2.3:h:intel:core_i3:2130:*:*:*:*:*:*:*
intel core_i3 2310e cpe:2.3:h:intel:core_i3:2310e:*:*:*:*:*:*:*
intel core_i3 2310m cpe:2.3:h:intel:core_i3:2310m:*:*:*:*:*:*:*
intel core_i3 2312m cpe:2.3:h:intel:core_i3:2312m:*:*:*:*:*:*:*
intel core_i3 2328m cpe:2.3:h:intel:core_i3:2328m:*:*:*:*:*:*:*
intel core_i3 2330e cpe:2.3:h:intel:core_i3:2330e:*:*:*:*:*:*:*
intel core_i3 2330m cpe:2.3:h:intel:core_i3:2330m:*:*:*:*:*:*:*
intel core_i3 2340ue cpe:2.3:h:intel:core_i3:2340ue:*:*:*:*:*:*:*
intel core_i3 2348m cpe:2.3:h:intel:core_i3:2348m:*:*:*:*:*:*:*
intel core_i3 2350m cpe:2.3:h:intel:core_i3:2350m:*:*:*:*:*:*:*
intel core_i3 2357m cpe:2.3:h:intel:core_i3:2357m:*:*:*:*:*:*:*
intel core_i3 2365m cpe:2.3:h:intel:core_i3:2365m:*:*:*:*:*:*:*
intel core_i3 2367m cpe:2.3:h:intel:core_i3:2367m:*:*:*:*:*:*:*
intel core_i3 2370m cpe:2.3:h:intel:core_i3:2370m:*:*:*:*:*:*:*
intel core_i3 2375m cpe:2.3:h:intel:core_i3:2375m:*:*:*:*:*:*:*
intel core_i3 2377m cpe:2.3:h:intel:core_i3:2377m:*:*:*:*:*:*:*
intel core_i3 3110m cpe:2.3:h:intel:core_i3:3110m:*:*:*:*:*:*:*
intel core_i3 3115c cpe:2.3:h:intel:core_i3:3115c:*:*:*:*:*:*:*
intel core_i3 3120m cpe:2.3:h:intel:core_i3:3120m:*:*:*:*:*:*:*
intel core_i3 3120me cpe:2.3:h:intel:core_i3:3120me:*:*:*:*:*:*:*
intel core_i3 3130m cpe:2.3:h:intel:core_i3:3130m:*:*:*:*:*:*:*
intel core_i3 3210 cpe:2.3:h:intel:core_i3:3210:*:*:*:*:*:*:*
intel core_i3 3217u cpe:2.3:h:intel:core_i3:3217u:*:*:*:*:*:*:*
intel core_i3 3217ue cpe:2.3:h:intel:core_i3:3217ue:*:*:*:*:*:*:*
intel core_i3 3220 cpe:2.3:h:intel:core_i3:3220:*:*:*:*:*:*:*
intel core_i3 3220t cpe:2.3:h:intel:core_i3:3220t:*:*:*:*:*:*:*
intel core_i3 3225 cpe:2.3:h:intel:core_i3:3225:*:*:*:*:*:*:*
intel core_i3 3227u cpe:2.3:h:intel:core_i3:3227u:*:*:*:*:*:*:*
intel core_i3 3229y cpe:2.3:h:intel:core_i3:3229y:*:*:*:*:*:*:*
intel core_i3 3240 cpe:2.3:h:intel:core_i3:3240:*:*:*:*:*:*:*
intel core_i3 3240t cpe:2.3:h:intel:core_i3:3240t:*:*:*:*:*:*:*
intel core_i3 3245 cpe:2.3:h:intel:core_i3:3245:*:*:*:*:*:*:*
intel core_i3 3250 cpe:2.3:h:intel:core_i3:3250:*:*:*:*:*:*:*
intel core_i3 3250t cpe:2.3:h:intel:core_i3:3250t:*:*:*:*:*:*:*
intel core_i3 4000m cpe:2.3:h:intel:core_i3:4000m:*:*:*:*:*:*:*
intel core_i3 4005u cpe:2.3:h:intel:core_i3:4005u:*:*:*:*:*:*:*
intel core_i3 4010u cpe:2.3:h:intel:core_i3:4010u:*:*:*:*:*:*:*
intel core_i3 4010y cpe:2.3:h:intel:core_i3:4010y:*:*:*:*:*:*:*
intel core_i3 4012y cpe:2.3:h:intel:core_i3:4012y:*:*:*:*:*:*:*
intel core_i3 4020y cpe:2.3:h:intel:core_i3:4020y:*:*:*:*:*:*:*
intel core_i3 4025u cpe:2.3:h:intel:core_i3:4025u:*:*:*:*:*:*:*
intel core_i3 4030u cpe:2.3:h:intel:core_i3:4030u:*:*:*:*:*:*:*
intel core_i3 4030y cpe:2.3:h:intel:core_i3:4030y:*:*:*:*:*:*:*
intel core_i3 4100e cpe:2.3:h:intel:core_i3:4100e:*:*:*:*:*:*:*
intel core_i3 4100m cpe:2.3:h:intel:core_i3:4100m:*:*:*:*:*:*:*
intel core_i3 4100u cpe:2.3:h:intel:core_i3:4100u:*:*:*:*:*:*:*
intel core_i3 4102e cpe:2.3:h:intel:core_i3:4102e:*:*:*:*:*:*:*
intel core_i3 4110e cpe:2.3:h:intel:core_i3:4110e:*:*:*:*:*:*:*
intel core_i3 4110m cpe:2.3:h:intel:core_i3:4110m:*:*:*:*:*:*:*
intel core_i3 4112e cpe:2.3:h:intel:core_i3:4112e:*:*:*:*:*:*:*
intel core_i3 4120u cpe:2.3:h:intel:core_i3:4120u:*:*:*:*:*:*:*
intel core_i3 4130 cpe:2.3:h:intel:core_i3:4130:*:*:*:*:*:*:*
intel core_i3 4130t cpe:2.3:h:intel:core_i3:4130t:*:*:*:*:*:*:*
intel core_i3 4150 cpe:2.3:h:intel:core_i3:4150:*:*:*:*:*:*:*
intel core_i3 4150t cpe:2.3:h:intel:core_i3:4150t:*:*:*:*:*:*:*
intel core_i3 4158u cpe:2.3:h:intel:core_i3:4158u:*:*:*:*:*:*:*
intel core_i3 4160 cpe:2.3:h:intel:core_i3:4160:*:*:*:*:*:*:*
intel core_i3 4160t cpe:2.3:h:intel:core_i3:4160t:*:*:*:*:*:*:*
intel core_i3 4170 cpe:2.3:h:intel:core_i3:4170:*:*:*:*:*:*:*
intel core_i3 4170t cpe:2.3:h:intel:core_i3:4170t:*:*:*:*:*:*:*

References for CVE-2018-3665

URL Tags
http://www.securityfocus.com/bid/104460 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041124 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041125 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1852 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1944 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2164 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2165 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1170 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1190 Third Party Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html Third Party Advisory
https://nvidia.custhelp.com/app/answers/detail/a_id/4787 Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:07.lazyfpu.asc Third Party Advisory
https://security.netapp.com/advisory/ntap-20181016-0001/ Third Party Advisory
https://security.paloaltonetworks.com/CVE-2018-3665 Third Party Advisory
https://support.citrix.com/article/CTX235745 Third Party Advisory
https://usn.ubuntu.com/3696-1/ Third Party Advisory
https://usn.ubuntu.com/3696-2/ Third Party Advisory
https://usn.ubuntu.com/3698-1/ Third Party Advisory
https://usn.ubuntu.com/3698-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4232 Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00145.html Vendor Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://www.synology.com/support/security/Synology_SA_18_31 Third Party Advisory
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