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CVE-2020-26560

24
FAUCET Score

CVE-2020-26560 describes a high-severity vulnerability in Bluetooth Mesh Provisioning (versions 1.0 and 1.0.1) that allows a nearby attacker to bypass authentication and potentially obtain network and application keys. This flaw, rated 8.1 HIGH on the CVSS scale, enables an adjacent attacker to achieve high confidentiality and integrity impacts without user interaction. While no active exploitation or public exploit code is currently reported, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0CPE matchmatch criteria
cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 64th percentile among its peer group of 1,859 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bluez
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bluez

Vendor Advisories (1)

redhatCVE-2020-26560Moderate

kernel: impersonation attack in Bluetooth Mesh Provisioning

May 24, 2021

References

kb.cert.org / vuls/id/799380
kb.cert.org / vuls/id/799380
Third Party AdvisoryUS Government Resource
bluetooth.com / learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security
Vendor Advisory