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CVE-2020-13593

21
FAUCET Score

CVE-2020-13593 is a high-severity vulnerability affecting Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through version 2.2.3. It allows an attacker in radio range to bypass the Diffie-Hellman check during Bluetooth Low Energy Secure Connection pairing if Link Layer encryption is set up beforehand. This enables arbitrary read/write access to protected GATT service data, denial of service, or potential device control. While rated 8.8 CVSS, there is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low current threat.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.2.3CPE matchmatch criteria
cpe:2.3:a:ti:simplelink-cc2640r2_software_development_kit:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 12th percentile among its peer group of 1,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

asset-group.github.io / cves.html
Third Party Advisory
asset-group.github.io / disclosures/sweyntooth
Third Party Advisory
ti.com / tool/BLE-STACK
Vendor Advisory