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CVE-2020-11539

20
FAUCET Score

CVE-2020-11539 affects Tata Sonata Smart SF Rush 1.12 devices, specifically the smart band and its firmware. The vulnerability stems from a lack of Bluetooth LE security, unencrypted data transmission, and absent authentication or signature verification for data sent to the device. This allows an attacker to control device parameters. Rated as HIGH severity with a CVSS score of 8.1, this vulnerability is easily exploitable over an adjacent network (AV:A, AC:L) without user interaction (UI:N). The potential impact includes high confidentiality and integrity compromise (C:H, I:H), as an attacker can manipulate device functions. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
1.12CPE matchmatch criteria
cpe:2.3:o:titan:sf_rush_smart_band_firmware:1.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 75th 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

github.com / the-girl-who-lived/CVE-2020-11539
ExploitThird Party Advisory
medium.com / %40sayliambure/hacking-a-5-smartband-824763ab6e8f