HOMEVULNERABILITIESCVE-2020-12504
CRITICAL

CVE-2020-12504

CWE-912Published: October 15, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT, ES9528-XTv2, ES7506, ES7510, ES7528, ES8508, ES8508F, ES8510, ES8510-XTE, ES9528/ES9528-XT (all versions) and ICRL-M-8RJ45/4SFP-G-DIN, ICRL-M-16RJ45/4CP-G-DIN FW 1.2.3 and below has an active TFTP-Service.

NVD Source

Technical Analysis

CVE-2020-12504 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

korenix26 product(s)
jetwave 2212s firmwarejetwave 2212sjetwave 2212g firmwarejetwave 2212gjetwave 2311 firmwarejetwave 2311jetwave 3220 firmwarejetwave 3220jetwave 3420 firmwarejetwave 3420jetwave 2212x firmwarejetwave 2212x+14
pepperl-fuchs30 product(s)
es7510-xt firmwarees7510-xtes8509-xt firmwarees8509-xtes8510-xt firmwarees8510-xtes9528-xtv2 firmwarees9528-xtv2es7506 firmwarees7506es7510 firmwarees7510+18
westermo2 product(s)
pmi-110-f2g firmwarepmi-110-f2g
Source: NVD CPE · 58 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://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html
ADVISORYhttp://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html
ADVISORYhttp://seclists.org/fulldisclosure/2021/Jun/0
ADVISORYhttps://cert.vde.com/de-de/advisories/vde-2020-040
ADVISORYhttps://cert.vde.com/en-us/advisories/vde-2020-053
ADVISORYhttps://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/
ADVISORYhttp://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html
ADVISORYhttp://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html
ADVISORYhttp://seclists.org/fulldisclosure/2021/Jun/0
ADVISORYhttps://cert.vde.com/de-de/advisories/vde-2020-040
ADVISORYhttps://cert.vde.com/en-us/advisories/vde-2020-053
ADVISORYhttps://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/

All References (12)

→
http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.htmlExploit · Third Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2021/Jun/0Exploit · Mailing List · Third Party Advisory
→
https://cert.vde.com/de-de/advisories/vde-2020-040Third Party Advisory
→
https://cert.vde.com/en-us/advisories/vde-2020-053Third Party Advisory
→
https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/Exploit · Third Party Advisory
→
http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.htmlExploit · Third Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2021/Jun/0Exploit · Mailing List · Third Party Advisory
→
https://cert.vde.com/de-de/advisories/vde-2020-040Third Party Advisory
→
https://cert.vde.com/en-us/advisories/vde-2020-053Third Party Advisory
→
https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2020-12504
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-912
CISA KEVNo
Affected3 vendor(s)
PublishedOct 15, 2020

Related CVEs (CWE-912)

CVE-2026-3587
10.0
CVE-2024-45697
9.8
CVE-2025-32370
9.8
CVE-2024-28011
9.8
CVE-2026-1952
9.8
CVE-2021-24867
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-12504 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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