HOMEVULNERABILITIESCVE-2016-2509
MEDIUM

CVE-2016-2509

CWE-200Published: February 18, 2016· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

The password-sync feature on Belden Hirschmann Classic Platform switches L2B before 05.3.07 and L2E, L2P, L3E, and L3P before 09.0.06 sets an SNMP community to the same string as the administrator password, which allows remote attackers to obtain sensitive information by sniffing the network.

NVD Source

Technical Analysis

CVE-2016-2509 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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), with a CVSS base score of 5.3.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

belden6 product(s)
hirschmann firmwarehirschmann l2bhirschmann l2ehirschmann l2phirschmann l3ehirschmann l3p
Source: NVD CPE · 7 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

ADVISORYhttp://www.kb.cert.org/vuls/id/507216
ADVISORYhttps://www.belden.com/resourcecenter/security/upload/Belden_Security_Advisory_BSECV-2016-2_1v0.pdf
ADVISORYhttp://www.kb.cert.org/vuls/id/507216
ADVISORYhttps://www.belden.com/resourcecenter/security/upload/Belden_Security_Advisory_BSECV-2016-2_1v0.pdf

All References (4)

→
http://www.kb.cert.org/vuls/id/507216Third Party Advisory · US Government Resource
→
https://www.belden.com/resourcecenter/security/upload/Belden_Security_Advisory_BSECV-2016-2_1v0.pdfVendor Advisory
→
http://www.kb.cert.org/vuls/id/507216Third Party Advisory · US Government Resource
→
https://www.belden.com/resourcecenter/security/upload/Belden_Security_Advisory_BSECV-2016-2_1v0.pdfVendor Advisory

Quick Facts

CVE IDCVE-2016-2509
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 18, 2016

Related CVEs (CWE-200)

CVE-2008-3010
10.0
CVE-2008-1155
10.0
CVE-2026-27604
10.0
CVE-2025-53624
10.0
CVE-2008-1252
10.0
CVE-2010-1230
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-2509 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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