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CVE-2026-28526

22
FAUCET Score

CVE-2026-28526 identifies an out-of-bounds read vulnerability in BlueKitchen BTstack versions prior to 1.8.1, specifically affecting the AVRCP Controller's LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES handlers. A nearby attacker with an established Bluetooth Classic connection can exploit this by sending a specially crafted VENDOR_DEPENDENT response. This low-complexity attack (CVSS 3.5) could lead to an out-of-bounds read from the L2CAP receive buffer, potentially causing a denial of service on resource-constrained devices. There is currently no evidence of active exploitation, nor are public exploit codes available, with only minimal community discussion observed.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.8.1CPE matchmatch criteria
cpe:2.3:a:bluekitchen-gmbh:btstack:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

2.1LOW

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 10th percentile among its peer group of 126 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

github.com / bluekitchen/btstack/releases/tag/v1.8.1
Release Notes
vulncheck.com / advisories/bluekitchen-btstack-avrcp-controller-list-player-application-setting-handlers-oob-read
Third Party Advisory