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CVE-2019-3987

25
FAUCET Score

CVE-2019-3987 is a critical vulnerability affecting Blink XT2 Sync Module firmware versions prior to 2.13.11, allowing remote attackers to execute arbitrary commands. This is due to improper input sanitization when configuring Wi-Fi settings, specifically via the 'key' parameter. With a CVSS score of 8.8 (High), it presents a significant risk as an adjacent network attacker can achieve full compromise (confidentiality, integrity, and availability) without user interaction. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the vulnerability's high severity and ease of exploitation warrant attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.13.11CPE matchmatch criteria
cpe:2.3:o:amazon:blink_xt2_sync_module_firmware:*:*:*:*:*:*:*:*

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
1.66%
Probability of exploitation in next 30 days
EPSS Percentile
74.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0166 is in the 85th percentile among its peer group of 1,857 CVEs.

Social Chatter

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

Vendor Patches (5)

boschvendor investigatingvia llm_extracted
maxkbvendor investigatingvia llm_extracted
naturalintelligencevendor investigatingvia llm_extracted
netgearvendor investigatingvia llm_extracted
opnsensevendor investigatingvia llm_extracted

Vendor Advisories (5)

netgearllm-netgear-091c620c2fafd0cfHIGH

Blink XT2 Sync Module Multiple Vulnerabilities

Dec 5, 2019
maxkbllm-maxkb-02e1cbfa2a469343HIGH

Blink XT2 Sync Module Multiple Vulnerabilities

Dec 5, 2019
boschllm-bosch-3f2ed4d8a9b46a21HIGH

Blink XT2 Sync Module Multiple Vulnerabilities

Dec 5, 2019
opnsensellm-opnsense-03b3ee0ec93969c2HIGH

Blink XT2 Sync Module Multiple Vulnerabilities

Dec 5, 2019
naturalintelligencellm-naturalintelligence-47088df23f20a54fHIGH

Blink XT2 Sync Module Multiple Vulnerabilities

Dec 5, 2019

References

tenable.com / security/research/tra-2019-51
ExploitThird Party Advisory