CVE-2020-12503

Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

7.2 High

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 is prone to multiple authenticated command injections.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

22.8%Up 22.4 points since Apr 14, 2021

What each source reports

CVE List Score used 7.2

Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

Record: CVE-2020-12503
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-863
Updated: 2026-11-02

EUVDEUVD-2020-4805 7.2

Record: EUVD-2020-4805
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vgv9-c2qw-673g 7.2

Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT...

Record: GHSA-vgv9-c2qw-673g
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-20, CWE-863
Updated: 2026-11-02

NVD 7.2

Record: CVE-2020-12503
CVSS 3.1: 7.2 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-863
Updated: 2026-11-02

Affected products

Show 19 moreShow less

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-12503 is a high vulnerability (CVSS 7.2) in Pepperl+fuchs P+f Comtrol Rocketlinx, published October 15, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 22.8%, the 97th percentile. No source names a fixed version.