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CVE-2020-12504

25
FAUCET Score

CVE-2020-12504 is a critical improper authorization vulnerability affecting various Pepperl+Fuchs P+F Comtrol RocketLinx and ICRL series industrial switches, specifically due to an active TFTP service. With a CVSS score of 9.8, this network-exploitable flaw requires no user interaction and allows for complete compromise of confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog, there is no public exploit code available, though the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.1CPE matchmatch criteria
cpe:2.3:o:pepperl-fuchs:es7510-xt_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:pepperl-fuchs:es8509-xt_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:pepperl-fuchs:es8510-xt_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:pepperl-fuchs:es9528-xtv2_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:pepperl-fuchs:es7506_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.02%
Probability of exploitation in next 30 days
EPSS Percentile
86.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0302 is in the 77th percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html
ExploitThird Party AdvisoryVDB Entry
cert.vde.com / de-de/advisories/vde-2020-040
Third Party Advisory
cert.vde.com / en-us/advisories/vde-2020-053
Third Party Advisory
seclists.org / fulldisclosure/2021/Jun/0
ExploitMailing ListThird Party Advisory
sec-consult.com / vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs
ExploitThird Party Advisory