CVE-2020-12503 [High] | Command Injection in Es7510-Xt Firmware

CVE-2020-12503 is rated High Exploit Risk (76.4/100): CVSS High severity, with high exploitation likelihood (EPSS 6.42%, 91th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

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Source

Kind

Published

Link

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nvd_ref

exploit_tag

Exploit-DB ↗

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nvd_ref

exploit_tag

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#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-01-04	5.63%	6.42%	+0.79%
2	2025-11-21	4.95%	5.63%	+0.69%
3	2025-11-18	—	4.95%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-01-04

5.63%

6.42%

+0.79%

2025-11-21

4.95%

5.63%

+0.69%

2025-11-18

—

4.95%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.2	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:H/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:H) They need powerful rights—admin, root, or similar—before this pays off. 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.	1.2	5.9	[email protected]
7.2	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:H/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:H) They need powerful rights—admin, root, or similar—before this pays off. 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.	1.2	5.9	[email protected]
6.5	2.0	MEDIUM	`AV:N/AC:L/Au:S/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:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.2

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/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:H): They need powerful rights—admin, root, or similar—before this pays off.
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.

1.2

5.9

[email protected]

7.2

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/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:H): They need powerful rights—admin, root, or similar—before this pays off.
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.

1.2

5.9

[email protected]

6.5

2.0

MEDIUM

AV:N/AC:L/Au:S/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:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

8.0

6.4

[email protected]

Affected software / configurations for CVE-2020-12503

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::::::::
pepperl-fuchs	icrl-m-8rj45\/4sfp-g-din_firmware	<= 1.3.1	cpe:2.3:o:pepperl-fuchs:icrl-m-8rj45\/4sfp-g-din_firmware::::::::
pepperl-fuchs	icrl-m-16rj45\/4cp-g-din_firmware	<= 1.3.1	cpe:2.3:o:pepperl-fuchs:icrl-m-16rj45\/4cp-g-din_firmware::::::::
korenix	jetnet_5428g-20sfp_firmware	—	cpe:2.3:o:korenix:jetnet_5428g-20sfp_firmware:-:::::::*
korenix	jetnet_5810g_firmware	—	cpe:2.3:o:korenix:jetnet_5810g_firmware:-:::::::*
korenix	jetnet_4706f_firmware	—	cpe:2.3:o:korenix:jetnet_4706f_firmware:-:::::::*
korenix	jetnet_4706_firmware	—	cpe:2.3:o:korenix:jetnet_4706_firmware:-:::::::*
korenix	jetnet_4510_firmware	—	cpe:2.3:o:korenix:jetnet_4510_firmware:-:::::::*
korenix	jetnet_5010_firmware	—	cpe:2.3:o:korenix:jetnet_5010_firmware:-:::::::*
korenix	jetnet_5310_firmware	—	cpe:2.3:o:korenix:jetnet_5310_firmware:-:::::::*
korenix	jetnet_6095_firmware	—	cpe:2.3:o:korenix:jetnet_6095_firmware:-:::::::*
pepperl-fuchs	icrl-m-16rj45\/4cp-g-din_firmware	—	cpe:2.3:o:pepperl-fuchs:icrl-m-16rj45\/4cp-g-din_firmware:-:::::::*
pepperl-fuchs	icrl-m-8rj45\/4sfp-g-din_firmware	—	cpe:2.3:o:pepperl-fuchs:icrl-m-8rj45\/4sfp-g-din_firmware:-:::::::*
korenix	jetwave_2212x_firmware	—	cpe:2.3:o:korenix:jetwave_2212x_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_2311_firmware	—	cpe:2.3:o:korenix:jetwave_2311_firmware:-:::::::*
korenix	jetwave_3220_firmware	—	cpe:2.3:o:korenix:jetwave_3220_firmware:-:::::::*

References for CVE-2020-12503

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	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/	Third Party Advisory

URL

CVE-2020-12503 | Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

Public exploit references (Exploit-DB) for CVE-2020-12503

Exploit prediction scoring system (EPSS) score for CVE-2020-12503

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12503

Weakness enumeration for CVE-2020-12503

Affected software / configurations for CVE-2020-12503

References for CVE-2020-12503