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No exploitation reportedFix available

CVE-2018-3693

No exploitation reported by the sources we read.

  • Published2018-07-10

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a speculative buffer overflow and side-channel analysis.

Timeline

dates in UTC
  1. 2018-07-1021:29CVE publishedNVD

Versions per branch

NVD
Intel atom c
BranchAffectedFixed in
—= c2308no fix published
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—= c2530no fix published
—= c2538no fix published
—= c2550no fix published
—= c2558no fix published
Intel atom z
BranchAffectedFixed in
—= z2420no fix published
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—= z2480no fix published
—= z2520no fix published
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—= z2760no fix published
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Intel celeron n
BranchAffectedFixed in
—= n2805no fix published
—= n2806no fix published
—= n2807no fix published
—= n2808no fix published
—= n2810no fix published
—= n2815no fix published
—= n2820no fix published
—= n2830no fix published
—= n2840no fix published
—= n2910no fix published
—= n2920no fix published
—= n2930no fix published

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • intel-microcodeUbuntu:18.04:LTSall versions · fixed in 3.20180312.0~ubuntu18.04.1
  • intel-microcodeUbuntu:16.04:LTSall versions · fixed in 3.20180312.0~ubuntu16.04.1
  • intel-microcodeUbuntu:14.04:LTSall versions · fixed in 3.20180312.0~ubuntu14.04.1
  • kernelRed Hat:rhel_eus:7.4::serverall versions · fixed in 0:3.10.0-693.55.1.el7and 24 other packages
  • kernelRed Hat:rhel_eus:7.4::computenodeall versions · fixed in 0:3.10.0-693.55.1.el7and 17 other packages
  • kernelRed Hat:enterprise_linux:7::workstationall versions · fixed in 0:3.10.0-862.11.6.el7and 17 other packages
  • kernelRed Hat:enterprise_linux:7::serverall versions · fixed in 0:3.10.0-862.11.6.el7and 24 other packages
  • kernelRed Hat:enterprise_linux:7::serverall versions · fixed in 0:4.14.0-115.17.1.el7aand 18 other packages

26 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-3693 Red Hat Product Security544 products fixed · 13 known affected

    Kernel: speculative bounds check bypass store

    kernel.src as a component of Red Hat Enterprise Linux 5 · kernel-rt as a component of Red Hat Enterprise MRG 2 · kernel-rt-debug as a component of Red Hat Enterprise MRG 2 · +10 more

  • RHSA-2020:0174 Red Hat Product Security25 products fixed

    Red Hat Security Advisory: kernel-alt security and bug fix update

  • RHSA-2019:1946 Red Hat Product Security111 products fixed

    Red Hat Security Advisory: kernel security, bug fix, and enhancement update

  • RHSA-2018:2395 Red Hat Product Security26 products fixed

    Red Hat Security Advisory: kernel-rt security and bug fix update

  • RHSA-2018:2384 Red Hat Product Security202 products fixed

    Red Hat Security Advisory: kernel security and bug fix update

  • RHSA-2018:2390 Red Hat Product Security180 products fixed

    Red Hat Security Advisory: kernel security and bug fix update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2020:0174 · 25 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
  2. No fix available, says the vendor Red Hat Product Security CVE-2018-3693 · 13 productsAffected

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Published
2018-07-10
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-v5hg-j44c-8mvh

Frequently asked questions

What is CVE-2018-3693?

Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a speculative buffer overflow and side-channel analysis.

Is CVE-2018-3693 actively exploited?

Active exploitation of CVE-2018-3693 has not been confirmed. Its EPSS score was 8.6% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3693?

CVE-2018-3693 has a CVSS v3 base score of 5.6 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.

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