CVE-2019-16336
The Bluetooth Low Energy implementation in Cypress PSoC 4 BLE component 3.61 and earlier processes data channel frames with a payload length larger than the configured link layer maximum RX payload size, which allows attackers (in radio range) to cause…
Does this matter?
Lower severity and a low EPSS score (1.48%). Track it; it rarely justifies an emergency change on its own.
Description
The Bluetooth Low Energy implementation in Cypress PSoC 4 BLE component 3.61 and earlier processes data channel frames with a payload length larger than the configured link layer maximum RX payload size, which allows attackers (in radio range) to cause a denial of service (crash) via a crafted BLE Link Layer frame.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.48% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- cypress/cyble-416045 · cypress/cybl11573
- Source
- cve@mitre.org
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://asset-group.github.io/disclosures/sweyntooth/Exploit, Third Party Advisory
- https://community.cypress.com/thread/48573Vendor Advisory
- https://community.cypress.com/thread/53680Vendor Advisory
- https://www.youtube.com/watch?v=Iw8sIBLWE_wExploit, Third Party Advisory
- https://asset-group.github.io/disclosures/sweyntooth/Exploit, Third Party Advisory
- https://community.cypress.com/thread/48573Vendor Advisory
- https://community.cypress.com/thread/53680Vendor Advisory
- https://www.youtube.com/watch?v=Iw8sIBLWE_wExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.