CVE-2018-3640

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

7.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 94.3% of scored records. A rank, not a probability.

NVD base score

5.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-05-22 12:00Z8 YR AGO

Last updated

2024-09-16 19:31Z2 YR AGO

Reserved

2017-12-28

Assigning CNA

intel

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-203Observable DiscrepancyBase
• CWE-515Covert Storage ChannelBase

Data version

5.1

Document digest

7072a59c3218491f1d790dcee3ea55f6ec59556c5834cd95ad48bfd5667b4a5c

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• support.lenovo.comhttp://support.lenovo.com/us/en/solutions/LEN-22133x_refsource_CONFIRM
• www.us-cert.govTA18-141Ahttps://www.us-cert.gov/ncas/alerts/TA18-141Athird-party-advisoryx_refsource_CERT
• www.securitytracker.com1042004http://www.securitytracker.com/id/1042004vdb-entryx_refsource_SECTRACK
• www.securitytracker.com1040949http://www.securitytracker.com/id/1040949vdb-entryx_refsource_SECTRACK
• psirt.global.sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0005x_refsource_CONFIRM
• www.intel.comhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.htmlx_refsource_CONFIRM
• www.synology.comhttps://www.synology.com/support/security/Synology_SA_18_23x_refsource_CONFIRM
• developer.arm.comhttps://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityx_refsource_CONFIRM
• www.kb.cert.orgVU#180049https://www.kb.cert.org/vuls/id/180049third-party-advisoryx_refsource_CERT-VN
• www.fujitsu.comhttp://www.fujitsu.com/global/support/products/software/security/products-f/cve-2018-3639e.htmlx_refsource_CONFIRM
• portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180013x_refsource_CONFIRM
• tools.cisco.com20180522 CPU Side-Channel Information Disclosure Vulnerabilities: May 2018https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180521-cpusidechannelvendor-advisoryx_refsource_CISCO
• www.mitel.comhttps://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-18-0006x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20180916 [SECURITY] [DLA 1506-1] intel-microcode security updatehttps://lists.debian.org/debian-lts-announce/2018/09/msg00017.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4273https://www.debian.org/security/2018/dsa-4273vendor-advisoryx_refsource_DEBIAN
• support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03850en_usx_refsource_CONFIRM
• www.securityfocus.com104228http://www.securityfocus.com/bid/104228vdb-entryx_refsource_BID
• lists.debian.org[debian-lts-announce] 20180727 [SECURITY] [DLA 1446-1] intel-microcode security updatehttps://lists.debian.org/debian-lts-announce/2018/07/msg00038.htmlmailing-listx_refsource_MLIST
• usn.ubuntu.comUSN-3756-1https://usn.ubuntu.com/3756-1/vendor-advisoryx_refsource_UBUNTU
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20180521-0001/x_refsource_CONFIRM
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdfx_refsource_CONFIRM