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CVE-2021-0129

21
FAUCET Score

CVE-2021-0129 describes an improper access control vulnerability within BlueZ, affecting Linux distributions like Debian and Red Hat. An authenticated, adjacent attacker could exploit this to achieve information disclosure. Rated 5.7 MEDIUM, the attack requires low privileges and adjacent network access, with a high impact on confidentiality. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.57CPE matchmatch criteria
cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 84th percentile among its peer group of 314 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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 (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-348.rt7.130.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-348.el8
View patch
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-rt

Vendor Advisories (1)

redhatCVE-2021-0129Moderate

kernel: Improper access control in BlueZ may allow information disclosure vulnerability.

Jun 8, 2021

References

lists.debian.org / debian-lts-announce/2021/06/msg00019.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2021/06/msg00020.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2021/06/msg00022.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202209-16
Third Party Advisory
security.netapp.com / advisory/ntap-20210716-0002
Third Party Advisory
debian.org / security/2021/dsa-4951
Third Party Advisory
intel.com / content/www/us/en/security-center/advisory/intel-sa-00517.html
Vendor Advisory