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CVE-2020-17406

29
FAUCET Score

CVE-2020-17406 is a critical vulnerability affecting Microhard Bullet-LTE devices running firmware versions prior to v1.2.0-r1112. It allows authenticated remote attackers to execute arbitrary code with root privileges due to improper validation of user-supplied input in the 'ping' parameter of the tools.sh script, leading to a system call injection (CWE-78). With a CVSS score of 8.8 (High) and a FAUCET Risk Score of 97/100, this vulnerability presents a significant risk, as it requires only low privileges and no user interaction for a network-based attack to achieve full compromise (confidentiality, integrity, availability). There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.0-r1112CPE matchmatch criteria
cpe:2.3:o:microhardcorp:bullet-lte_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.34%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0534 is in the 91st percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zerodayinitiative.com / advisories/ZDI-20-1205
Third Party AdvisoryVDB Entry