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CVE-2020-10135

17
FAUCET Score

CVE-2020-10135 is a medium-severity vulnerability affecting Bluetooth BR/EDR Core Specification v5.2 and earlier, including various Bluetooth implementations. It allows an unauthenticated, adjacent attacker to impersonate a previously paired Bluetooth device and complete authentication without needing the link key. The vulnerability has a CVSS score of 5.4, indicating a low impact on confidentiality and integrity, and requires adjacent access with low attack complexity. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2CPE matchmatch criteria
cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:br:*:*:*
<= 5.2CPE matchmatch criteria
cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:edr:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.39%
Probability of exploitation in next 30 days
EPSS Percentile
82.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0239 is in the 96th percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-503.11.1.el9_5
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2020-10135Moderate

kernel: bluetooth: BR/EDR Bluetooth Impersonation Attacks (BIAS)

May 18, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-08/msg00009.html
Broken LinkMailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-08/msg00047.html
Broken LinkMailing ListThird Party Advisory
packetstormsecurity.com / files/157922/Bluetooth-Impersonation-Attack-BIAS-Proof-Of-Concept.html
Third Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2020/Jun/5
ExploitMailing ListThird Party Advisory
francozappa.github.io / about-bias
Third Party Advisory
kb.cert.org / vuls/id/647177
Third Party AdvisoryUS Government Resource
bluetooth.com / learn-about-bluetooth/bluetooth-technology/bluetooth-security/bias-vulnerability
Vendor Advisory