Vulnerability Snapshot
CVE-2017-7588 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.
Affected technology: mfc_firmware, mfc-8710dw, mfc-9130cw, mfc-9330cdw, mfc-9340cdw, plus 5 other product variants.
Executive Summary
On certain Brother devices, authorization is mishandled by including a valid AuthCookie cookie in the HTTP response to a failed login attempt. Affected models are: MFC-J6973CDW MFC-J4420DW MFC-8710DW MFC-J4620DW MFC-L8850CDW MFC-J3720 MFC-J6520DW MFC-L2740DW MFC-J5910DW MFC-J6920DW MFC-L2700DW MFC-9130CW MFC-9330CDW MFC-9340CDW MFC-J5620DW MFC-J6720DW MFC-L8600CDW MFC-L9550CDW MFC-L2720DW DCP-L2540DW DCP-L2520DW HL-3140CW HL-3170CDW HL-3180CDW HL-L8350CDW HL-L2380DW ADS-2500W ADS-1000W ADS-1500W.
Why It Matters
CVE-2017-7588 is rated CRITICAL severity, requiring immediate attention from security teams.
CVSS Base Score: 9.8/10
Affected Technologies
Vendors: brother
Products: mfc_firmware, mfc-8710dw, mfc-9130cw, mfc-9330cdw, mfc-9340cdw, mfc-j3720, mfc-j4420dw, mfc-j4620dw, mfc-j5620dw, mfc-j5910dw, mfc-j6520dw, mfc-j6720dw, mfc-j6920dw, mfc-j6973cdw, mfc-l2700dw, mfc-l2720dw, mfc-l2740dw, mfc-l8600cdw, mfc-l8850cdw, mfc-l9550cdw, dcp_firmware, dcp-l2520dw, dcp-l2540dw, ads_firmware, ads-1000w, ads-1500w, ads-2500w, hl_firmware, hl-3140cw, hl-3170cdw, hl-3180cdw, hl-l2380dw, hl-l8350cdw
🛡️What Defenders Should Check
Use Vulnios to continuously monitor your exposure to CVE-2017-7588 and similar vulnerabilities.
References & Sources
How Vulnios Detects This
Vulnios scans for this vulnerability using Trivy and Grype for SBOM-based CVE matching and Vulnios CVE feed continuous monitoring against your asset inventory. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.
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Affected Products
Sources
Related Threat Alerts
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- Critical Vulnerability: CVE-2017-4923 — vmware — vcenter_server
- Critical Vulnerability: CVE-2017-1383 — ibm — infosphere_information_server, softlayer
Frequently Asked Questions
What is CVE-2017-7588?
CVE-2017-7588 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. On certain Brother devices, authorization is mishandled by including a valid AuthCookie cookie in the HTTP response to a failed login attempt. Affected models are: MFC-J6973CDW MFC-J4420DW MFC-8710DW
Am I affected?
Check whether your environment runs mfc_firmware, mfc-8710dw, mfc-9130cw, mfc-9330cdw, mfc-9340cdw. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.
How urgent is the response?
Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.
How do I remediate?
Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.
Where can I track exploitation activity?
Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2017-7588. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.
How does Vulnios help with this?
Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.
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