How severe is CVE-2026-28528?

CVE-2026-28528 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-28528 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28528?

CVE-2026-28528 affects Bluekitchen-gmbh Btstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28528?

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

Does CVE-2026-28528 have an EU (EUVD) identifier?

Yes. CVE-2026-28528 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17089.

When was CVE-2026-28528 published?

CVE-2026-28528 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-28528

CVE-2026-28528 is a medium-severity vulnerability in Bluekitchen-gmbh Btstack with a CVSS 3.x base score of 4.6. 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: Medium (CVSS 3.x base score 4.6)
CVSS v4: 2.1
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17089
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 Browsing Target GET_FOLDER_ITEMS handler that fails to validate packet boundaries and attribute count data. An attacker with a paired Bluetooth Classic connection can exploit insufficient bounds checking on the attr_id parameter to cause crashes and corrupt attribute bitmap state.

Frequently asked questions

What is CVE-2026-28528?: BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Browsing Target GET_FOLDER_ITEMS handler that fails to validate packet boundaries and attribute count data. An attacker with a paired Bluetooth Classic connection can exploit insufficient bounds checking on the attr_id parameter to cause crashes and corrupt attribute bitmap state.
How severe is CVE-2026-28528?: CVE-2026-28528 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-28528 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28528?: CVE-2026-28528 affects Bluekitchen-gmbh Btstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28528?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28528 have an EU (EUVD) identifier?: Yes. CVE-2026-28528 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17089.
When was CVE-2026-28528 published?: CVE-2026-28528 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Bluekitchen-gmbh Btstack

CVE-2026-28527 — Low (CVSS 3.5): BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Controller…
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