HOMEVULNERABILITIESCVE-2017-11400
MEDIUM

CVE-2017-11400

CWE-347Published: November 20, 2017· Updated: Jun 17, 2026

6.8
CVSS v3.1

Official Description

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.

NVD Source

Technical Analysis

CVE-2017-11400 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

belden2 product(s)
tofino xenon security appliance firmwaretofino xenon security appliance
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt
ADVISORYhttps://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf
ADVISORYhttps://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt
ADVISORYhttps://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf

All References (4)

→
https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txtThird Party Advisory
→
https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdfVendor Advisory
→
https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txtThird Party Advisory
→
https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdfVendor Advisory

Quick Facts

CVE IDCVE-2017-11400
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-347
CISA KEVNo
Affected1 vendor(s)
PublishedNov 20, 2017

Related CVEs (CWE-347)

CVE-2024-32962
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CVE-2026-48558
KEV10.0
CVE-2026-56451
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CVE-2026-44748
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CVE-2026-15013
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CVE-2019-6318
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-11400 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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