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CVE-2019-8922

22
FAUCET Score

CVE-2019-8922 is a heap-based buffer overflow vulnerability in BlueZ through version 5.48, affecting Bluetooth daemons in various Linux distributions including Debian. This flaw arises from a lack of size checks when appending attribute values to a response buffer, allowing an attacker to overflow the buffer with a crafted request. With a CVSS score of 8.8 (High), it presents a significant risk, allowing an unauthenticated attacker on an adjacent network to achieve high confidentiality, integrity, and availability impacts. Despite its severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.48CPE matchmatch criteria
cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.43%
Probability of exploitation in next 30 days
EPSS Percentile
70.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0143 is in the 83rd percentile among its peer group of 1,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

No media coverage found for this CVE.

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 (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bluez

Vendor Advisories (1)

redhatCVE-2019-8922Moderate

bluez: heap-based buffer overflow via crafted request

Feb 25, 2019

References

lists.debian.org / debian-lts-announce/2022/10/msg00026.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20211203-0002
Third Party Advisory
ssd-disclosure.com / ssd-advisory-linux-bluez-information-leak-and-heap-overflow
ExploitThird Party Advisory