How severe is CVE-2026-28526?

CVE-2026-28526 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-28526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28526?

CVE-2026-28526 affects Bluekitchen-gmbh Btstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-28526 have an EU (EUVD) identifier?

Yes. CVE-2026-28526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17085.

When was CVE-2026-28526 published?

CVE-2026-28526 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-28526

CVE-2026-28526 is a low-severity vulnerability in Bluekitchen-gmbh Btstack with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v4: 2.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17085
Weakness: CWE-125
Affected product: Bluekitchen-gmbh Btstack
Published: 2026-03-30
Last modified: 2026-06-17

Description

BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Controller LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES handlers that allows attackers to read beyond buffer boundaries. A nearby attacker with a paired Bluetooth Classic connection can send a specially crafted VENDOR_DEPENDENT response with an attacker-controlled count value to trigger an out-of-bounds read from the L2CAP receive buffer, potentially causing a crash on resource-constrained devices.

Frequently asked questions

What is CVE-2026-28526?: BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Controller LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES handlers that allows attackers to read beyond buffer boundaries. A nearby attacker with a paired Bluetooth Classic connection can send a specially crafted VENDOR_DEPENDENT response with an attacker-controlled count value to trigger an out-of-bounds read from the L2CAP receive buffer, potentially causing a crash on resource-constrained devices.
How severe is CVE-2026-28526?: CVE-2026-28526 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-28526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28526?: CVE-2026-28526 affects Bluekitchen-gmbh Btstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28526 have an EU (EUVD) identifier?: Yes. CVE-2026-28526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17085.
When was CVE-2026-28526 published?: CVE-2026-28526 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bluekitchen-gmbh:btstack:*:*:*:*:*:*:*:*

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