CVE-2020-12504

Name: CVE-2020-12504
Creator: NVD / NIST
Published: 2020-10-15T19:15:11.993+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.98%

Last modified Jun 17, 2026

CVE-2020-12504 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.98% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.98%

85.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-912

Affected Software

Vendor	Product	Versions
Pepperl-Fuchs	Es7510-Xt Firmware	< 2.1.1
Pepperl-Fuchs	Es8509-Xt Firmware	All versions
Pepperl-Fuchs	Es8510-Xt Firmware	All versions
Pepperl-Fuchs	Es9528-Xtv2 Firmware	All versions
Pepperl-Fuchs	Es7506 Firmware	All versions
Pepperl-Fuchs	Es7510 Firmware	All versions
Pepperl-Fuchs	Es7528 Firmware	All versions
Pepperl-Fuchs	Es8508 Firmware	All versions
Pepperl-Fuchs	Es8508f Firmware	All versions
Pepperl-Fuchs	Es8510 Firmware	< 3.1.1
Pepperl-Fuchs	Es8510-Xte Firmware	All versions
Pepperl-Fuchs	Es9528 Firmware	All versions
Pepperl-Fuchs	Es9528-Xt Firmware	All versions
Pepperl-Fuchs	Icrl-M-8rj45\/4sfp-G-Din Firmware	<= 1.2.3
Pepperl-Fuchs	Icrl-M-16rj45\/4cp-G-Din Firmware	<= 1.2.3
Korenix	Jetwave 2212s Firmware	1.5
Korenix	Jetwave 2212g Firmware	1.4
Korenix	Jetwave 2311 Firmware	1.2
Korenix	Jetwave 3220 Firmware	1.2
Korenix	Jetwave 3420 Firmware	1.1.3t
Korenix	Jetwave 2212x Firmware	1.5
Korenix	Jetwave 5428g-20sfp Firmware	1.0
Korenix	Jetwave 5810g Firmware	1.1
Korenix	Jetwave 5310 Firmware	1.5
Korenix	Jetwave 5010 Firmware	3.1a
Korenix	Jetwave 4706f Firmware	2.3b
Korenix	Jetwave 4706 Firmware	2.3b
Korenix	Jetwave 4510 Firmware	3.0b
Westermo	Pmi-110-F2g Firmware	1.5

References

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

Timeline

Published: Oct 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12504?

How severe is CVE-2020-12504?

CVE-2020-12504 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.98% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12504?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12504?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST