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Fencer Vulns
critical 9.8

CVE-2020-12504 json

Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

published 2020-10-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4806

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.0%
EPSS 3.0% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

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.

Patch / fix

  • Pepperl+Fuchs P+F Comtrol RocketLinx 2.1.1, 3.1.1
  • Korenix JetNet V1.6
  • Westermo PMI-110-F2G V1.8

Exploit prediction

3.02% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • seclists.org http://seclists.org/fulldisclosure/2021/Jun/0 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html referenced PoC, tagged "exploit" by a source, unverified
  • sec-consult.com https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/ referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Pepperl+Fuchs P+F Comtrol RocketLinx
  • Korenix JetNet
  • Westermo PMI-110-F2G

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.