CVE-2020-12504 [Critical] | Security Vulnerability in Es7510-Xt Firmware

CVE-2020-12504 is rated High Exploit Risk (76.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.55%). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-01-04	1.47%	0.55%	-0.92%
2	2025-03-30	2.17%	1.47%	-0.70%
3	2025-03-29	—	2.17%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-01-04

1.47%

0.55%

-0.92%

2025-03-30

2.17%

1.47%

-0.70%

2025-03-29

—

2.17%

—

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]

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]

Affected software / configurations for CVE-2020-12504

Vendor	Product	Version	Raw CPE
pepperl-fuchs	es7510-xt_firmware	< 2.1.1	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	< 3.1.1	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::::::::
pepperl-fuchs	icrl-m-8rj45\/4sfp-g-din_firmware	<= 1.2.3	cpe:2.3:o:pepperl-fuchs:icrl-m-8rj45\/4sfp-g-din_firmware::::::::
pepperl-fuchs	icrl-m-16rj45\/4cp-g-din_firmware	<= 1.2.3	cpe:2.3:o:pepperl-fuchs:icrl-m-16rj45\/4cp-g-din_firmware::::::::
korenix	jetwave_2212s_firmware	1.5	cpe:2.3:o:korenix:jetwave_2212s_firmware:1.5:::::::*
korenix	jetwave_2212g_firmware	1.4	cpe:2.3:o:korenix:jetwave_2212g_firmware:1.4:::::::*
korenix	jetwave_2311_firmware	1.2	cpe:2.3:o:korenix:jetwave_2311_firmware:1.2:::::::*
korenix	jetwave_3220_firmware	1.2	cpe:2.3:o:korenix:jetwave_3220_firmware:1.2:::::::*
korenix	jetwave_3420_firmware	1.1.3t	cpe:2.3:o:korenix:jetwave_3420_firmware:1.1.3t:::::::*
korenix	jetwave_2212x_firmware	1.5	cpe:2.3:o:korenix:jetwave_2212x_firmware:1.5:::::::*
korenix	jetwave_5428g-20sfp_firmware	1.0	cpe:2.3:o:korenix:jetwave_5428g-20sfp_firmware:1.0:::::::*
korenix	jetwave_5810g_firmware	1.1	cpe:2.3:o:korenix:jetwave_5810g_firmware:1.1:::::::*
korenix	jetwave_5310_firmware	1.5	cpe:2.3:o:korenix:jetwave_5310_firmware:1.5:::::::*
korenix	jetwave_5010_firmware	3.1a	cpe:2.3:o:korenix:jetwave_5010_firmware:3.1a:::::::*
korenix	jetwave_4706f_firmware	2.3b	cpe:2.3:o:korenix:jetwave_4706f_firmware:2.3b:::::::*
korenix	jetwave_4706_firmware	2.3b	cpe:2.3:o:korenix:jetwave_4706_firmware:2.3b:::::::*
korenix	jetwave_4510_firmware	3.0b	cpe:2.3:o:korenix:jetwave_4510_firmware:3.0b:::::::*
westermo	pmi-110-f2g_firmware	1.5	cpe:2.3:o:westermo:pmi-110-f2g_firmware:1.5:::::::*

References for CVE-2020-12504

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://seclists.org/fulldisclosure/2021/Jun/0	Exploit Mailing List Third Party Advisory
https://cert.vde.com/de-de/advisories/vde-2020-040	Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2020-053	Third Party Advisory
https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/	Exploit Third Party Advisory

URL

CVE-2020-12504 | Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

Public exploit references (Exploit-DB) for CVE-2020-12504

Exploit prediction scoring system (EPSS) score for CVE-2020-12504

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12504

Weakness enumeration for CVE-2020-12504

Affected software / configurations for CVE-2020-12504

References for CVE-2020-12504