How severe is CVE-2025-44559?

CVE-2025-44559 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-44559 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-44559?

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

Does CVE-2025-44559 have an EU (EUVD) identifier?

Yes. CVE-2025-44559 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19415.

When was CVE-2025-44559 published?

CVE-2025-44559 was published on 2025-06-27 and last updated on 2026-07-05.

CVE-2025-44559

CVE-2025-44559 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19415
Weakness: CWE-400
Published: 2025-06-27
Last modified: 2026-07-05

Description

An issue in the Bluetooth Low Energy (BLE) stack of Realtek RTL8762E BLE SDK v1.4.0 allows attackers within Bluetooth range to cause a Denial of Service (DoS) via sending a specific sequence of crafted control packets.

Frequently asked questions

What is CVE-2025-44559?: An issue in the Bluetooth Low Energy (BLE) stack of Realtek RTL8762E BLE SDK v1.4.0 allows attackers within Bluetooth range to cause a Denial of Service (DoS) via sending a specific sequence of crafted control packets.
How severe is CVE-2025-44559?: CVE-2025-44559 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-44559 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-44559?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-44559 have an EU (EUVD) identifier?: Yes. CVE-2025-44559 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19415.
When was CVE-2025-44559 published?: CVE-2025-44559 was published on 2025-06-27 and last updated on 2026-07-05.

References

https://github.com/yangting111/BLE_TEST/blob/main/result/PoC/Realtek/Cross-layer_Interaction_Deadlock.md

EU advisories (EUVD)

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