CVE-2020-12501 | Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

Exp

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) use undocumented accounts.

Published: 2020-10-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12501 is rated High Exploit Risk (87/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.30%). 4 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.36% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-12501

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-12501

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.94% 3.30% +2.36%
2 2025-11-21 1.49% 0.94% -0.55%
3 2025-11-18 — 1.49% —

Full EPSS history (26 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12501

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2020-12501

Affected software / configurations for CVE-2020-12501

Vendor Product Version Raw CPE
pepperl-fuchs es7510-xt_firmware — cpe:2.3:o:pepperl-fuchs:es7510-xt_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es8509-xt_firmware — cpe:2.3:o:pepperl-fuchs:es8509-xt_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es8510-xt_firmware — cpe:2.3:o:pepperl-fuchs:es8510-xt_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es9528-xtv2_firmware — cpe:2.3:o:pepperl-fuchs:es9528-xtv2_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es7506_firmware — cpe:2.3:o:pepperl-fuchs:es7506_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es7510_firmware — cpe:2.3:o:pepperl-fuchs:es7510_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es7528_firmware — cpe:2.3:o:pepperl-fuchs:es7528_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es8508_firmware — cpe:2.3:o:pepperl-fuchs:es8508_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es8508f_firmware — cpe:2.3:o:pepperl-fuchs:es8508f_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es8510_firmware — cpe:2.3:o:pepperl-fuchs:es8510_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es8510-xte_firmware — cpe:2.3:o:pepperl-fuchs:es8510-xte_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es9528_firmware — cpe:2.3:o:pepperl-fuchs:es9528_firmware:*:*:*:*:*:*:*:*
pepperl-fuchs es9528-xt_firmware — cpe:2.3:o:pepperl-fuchs:es9528-xt_firmware:*:*:*:*:*:*:*:*
korenix jetnet5428g-20sfp_firmware — cpe:2.3:o:korenix:jetnet5428g-20sfp_firmware:-:*:*:*:*:*:*:*
korenix jetnet5810g_firmware — cpe:2.3:o:korenix:jetnet5810g_firmware:-:*:*:*:*:*:*:*
korenix jetnet4510_firmware — cpe:2.3:o:korenix:jetnet4510_firmware:-:*:*:*:*:*:*:*
korenix jetnet5010_firmware — cpe:2.3:o:korenix:jetnet5010_firmware:-:*:*:*:*:*:*:*
korenix jetnet5310_firmware — cpe:2.3:o:korenix:jetnet5310_firmware:-:*:*:*:*:*:*:*
korenix jetnet6095_firmware — cpe:2.3:o:korenix:jetnet6095_firmware:-:*:*:*:*:*:*:*
korenix jetnet4706_firmware — cpe:2.3:o:korenix:jetnet4706_firmware:-:*:*:*:*:*:*:*
korenix jetwave_3220_firmware — cpe:2.3:o:korenix:jetwave_3220_firmware:-:*:*:*:*:*:*:*
korenix jetwave_2311_firmware — cpe:2.3:o:korenix:jetwave_2311_firmware:-:*:*:*:*:*:*:*
korenix jetnet4706f_firmware — cpe:2.3:o:korenix:jetnet4706f_firmware:-:*:*:*:*:*:*:*
korenix jetwave_2212s_firmware — cpe:2.3:o:korenix:jetwave_2212s_firmware:-:*:*:*:*:*:*:*
korenix jetwave_2212g_firmware — cpe:2.3:o:korenix:jetwave_2212g_firmware:-:*:*:*:*:*:*:*
korenix jetwave_2212x_firmware — cpe:2.3:o:korenix:jetwave_2212x_firmware:-:*:*:*:*:*:*:*

References for CVE-2020-12501

URL Tags
http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/167409/Korenix-JetPort-5601V3-Backdoor-Account.html Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jun/0 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2022/Jun/3 Exploit Mailing List Third Party Advisory
https://cert.vde.com/de-de/advisories/vde-2020-040 Third Party Advisory
https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/ Third Party Advisory
cvelogic Threat Intelligence