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Vulnerability record · CVE-2017-17738 · published 18 December 2017

CVE-2017-17738: Brightsign 4k242 firmware vulnerability

Brightsign · 4k242 Firmware

The BrightSign Digital Signage (4k242) device (Firmware 6.2.63 and below) allows renaming and modifying files via /tools.html.

7.5 CVSS 3.0 High EPSS 5.8% · top 7.2%
7.5CVSS 3.0 base score, v2 6.4
5.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The BrightSign Digital Signage (4k242) device (Firmware 6.2.63 and below) allows renaming and modifying files via /tools.html.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.information-paradox.net/2017/12/brightsign-multiple-vulnerablities-cve.html Issue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/43364/ ExploitIssue TrackingThird Party AdvisoryVDB Entry
http://www.information-paradox.net/2017/12/brightsign-multiple-vulnerablities-cve.html Issue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/43364/ ExploitIssue TrackingThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-17739Brightsign 4k242 firmware path traversal vulnerabilityThe BrightSign Digital Signage (4k242) device (Firmware 6.2.63 and below) has directory traversal via the /storage.html rp parameter, allowing an att…EPSS 12%6.1CVE-2017-17737Brightsign 4k242 firmware cross-site scripting vulnerabilityThe BrightSign Digital Signage (4k242) device (Firmware 6.2.63 and below) has XSS via the REF parameter to /network_diagnostics.html or /storage_info…EPSS 2.1%

Source: NIST National Vulnerability Database (record CVE-2017-17738), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.