Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-5383

24
FAUCET Score

CVE-2018-5383 is a Bluetooth vulnerability affecting macOS, iOS, and Android devices, where insufficient validation of elliptic curve parameters during Diffie-Hellman key exchange could allow a remote attacker to obtain the encryption key. This medium-severity flaw (CVSS 6.8) has an adjacent attack vector and high impact on confidentiality and integrity, but requires high attack complexity. While not listed in CISA KEV or having public exploit code, it garnered significant community discussion and media coverage at the time of discovery.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3CPE matchmatch criteria
cpe:2.3:o:ti:wl18xx_bluetooth_service_pack:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*
6.0.1CPE matchmatch criteria
cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*
7.1.1CPE matchmatch criteria
cpe:2.3:o:google:android:7.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.0HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
5.8
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 94th percentile among its peer group of 1,749 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: linux-firmware-0:20190429-72.gitddde598.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: linux-firmware

Vendor Advisories (1)

redhatCVE-2018-5383Important

kernel: Bluetooth implementations may not sufficiently validate elliptic curve parameters during Diffie-Hellman key exchange

Jul 23, 2018

References

access.redhat.com / errata/RHSA-2019:2169
Third Party Advisory
lists.debian.org / debian-lts-announce/2019/04/msg00005.html
Mailing List
usn.ubuntu.com / 4094-1
Third Party Advisory
usn.ubuntu.com / 4095-1
Third Party Advisory
usn.ubuntu.com / 4095-2
Third Party Advisory
usn.ubuntu.com / 4118-1
Third Party Advisory
usn.ubuntu.com / 4351-1
Third Party Advisory
bluetooth.com / news/unknown/2018/07/bluetooth-sig-security-update
Broken LinkVendor Advisory
kb.cert.org / vuls/id/304725
Third Party Advisory
cs.technion.ac.il / ~biham/BT
MitigationThird Party Advisory
securityfocus.com / bid/104879
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1041432
Broken LinkThird Party AdvisoryVDB Entry