HIGH
CVE-2015-3971
CWE-284Published: October 28, 2015· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
The debug interface on Janitza UMG 508, 509, 511, 604, and 605 devices does not require authentication, which allows remote attackers to read or write to files, or execute arbitrary JASIC code, via a session on TCP port 1239.
Technical Analysis
CVE-2015-3971 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected Vendors & Products
janitza5 product(s)
umg 508umg 509umg 511umg 604umg 605
Source: NVD CPE · 5 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
All References (2)
→
https://ics-cert.us-cert.gov/advisories/ICSA-15-265-03Patch · Third Party Advisory · US Government Resource
→
https://ics-cert.us-cert.gov/advisories/ICSA-15-265-03Patch · Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2015-3971
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-284
CISA KEVNo
Affected1 vendor(s)
PublishedOct 28, 2015
Related CVEs (CWE-284)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-3971 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.