CVE-2020-13593

HIGH
8.8
CVSS Score
Published: August 31, 2020 at 02:54 PM UTC
Updated: June 17, 2026 at 02:53 AM UTC
1 product affected across 1 vendorSimplelink CC2640R2 Software Development Kit

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%

Description

The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation in Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through 2.2.3 allows the Diffie-Hellman check during the Secure Connection pairing to be skipped if the Link Layer encryption setup is performed earlier. An attacker in radio range can achieve arbitrary read/write access to protected GATT service data, cause a denial of service, or possibly control a device's function by establishing an encrypted session with an unauthenticated Long Term Key (LTK).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCVendor Advisory
http://www.ti.com/tool/BLE-STACK
x_refsource_MISCThird Party Advisory
https://asset-group.github.io/cves.html

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-347

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