CVE-2018-5383

Name: CVE-2018-5383
Creator: NVD / NIST
Published: 2018-08-07T21:29:00.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2018-5383 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Bluetooth firmware or operating system software drivers in macOS versions before 10.13, High Sierra and iOS versions before 11.4, and Android versions before the 2018-06-05 patch may not sufficiently validate elliptic curve parameters used to generate public keys during a Diffie-Hellman key exchange, which may allow a remote attacker to obtain the encryption key used by the device.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

Bluetooth firmware or operating system software drivers in macOS versions before 10.13, High Sierra and iOS versions before 11.4, and Android versions before the 2018-06-05 patch may not sufficiently validate elliptic curve parameters used to generate public keys during a Diffie-Hellman key exchange, which may allow a remote attacker to obtain the encryption key used by the device.

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.80%

52.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ti	Wl18xx Bluetooth Service Pack	< 4.3
Google	Android	6.0
Google	Android	6.0.1
Google	Android	7.0
Google	Android	7.1.1
Google	Android	7.1.2
Google	Android	8.0
Google	Android	8.1
Apple	Iphone Os	< 11.4
Apple	Mac Os X	< 10.13

References

http://www.cs.technion.ac.il/~biham/BT/Mitigation, Third Party Advisory
http://www.securityfocus.com/bid/104879Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041432Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:2169Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00005.htmlMailing List
https://usn.ubuntu.com/4094-1/Third Party Advisory
https://usn.ubuntu.com/4095-1/Third Party Advisory
https://usn.ubuntu.com/4095-2/Third Party Advisory
https://usn.ubuntu.com/4118-1/Third Party Advisory
https://usn.ubuntu.com/4351-1/Third Party Advisory
https://www.bluetooth.com/news/unknown/2018/07/bluetooth-sig-security-updateBroken Link, Vendor Advisory
https://www.kb.cert.org/vuls/id/304725Third Party Advisory
http://www.cs.technion.ac.il/~biham/BT/Mitigation, Third Party Advisory
http://www.securityfocus.com/bid/104879Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041432Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:2169Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00005.htmlMailing List
https://usn.ubuntu.com/4094-1/Third Party Advisory
https://usn.ubuntu.com/4095-1/Third Party Advisory
https://usn.ubuntu.com/4095-2/Third Party Advisory
https://usn.ubuntu.com/4118-1/Third Party Advisory
https://usn.ubuntu.com/4351-1/Third Party Advisory
https://www.bluetooth.com/news/unknown/2018/07/bluetooth-sig-security-updateBroken Link, Vendor Advisory
https://www.kb.cert.org/vuls/id/304725Third Party Advisory

Timeline

Published: Aug 7, 2018
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2018-5383?

How severe is CVE-2018-5383?

CVE-2018-5383 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5383?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5383?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST