How severe is CVE-2020-12504?

CVE-2020-12504 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12504 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12504?

CVE-2020-12504 primarily affects Pepperl-fuchs Es7510-xt Firmware. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12504?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-12504 published?

CVE-2020-12504 was published on 2020-10-15 and last updated on 2026-06-17.

CVE-2020-12504

CVE-2020-12504 is a critical-severity vulnerability in Pepperl-fuchs Es7510-xt Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-912.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-912
Affected product: Pepperl-fuchs Es7510-xt Firmware
Published: 2020-10-15
Last modified: 2026-06-17

Description

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 has an active TFTP-Service.

Frequently asked questions

What is CVE-2020-12504?: 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 has an active TFTP-Service.
How severe is CVE-2020-12504?: CVE-2020-12504 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12504 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12504?: CVE-2020-12504 primarily affects Pepperl-fuchs Es7510-xt Firmware. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12504?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-12504 published?: CVE-2020-12504 was published on 2020-10-15 and last updated on 2026-06-17.

References

Affected products (29)

cpe:2.3:o:pepperl-fuchs:es7510-xt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es8509-xt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es8510-xt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es9528-xtv2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es7506_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es7510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es7528_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es8508_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es8508f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es8510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es8510-xte_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es9528_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:es9528-xt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:icrl-m-8rj45\/4sfp-g-din_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pepperl-fuchs:icrl-m-16rj45\/4cp-g-din_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_2212s_firmware:1.5:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_2212g_firmware:1.4:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_2311_firmware:1.2:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_3220_firmware:1.2:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_3420_firmware:1.1.3t:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_2212x_firmware:1.5:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_5428g-20sfp_firmware:1.0:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_5810g_firmware:1.1:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_5310_firmware:1.5:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_5010_firmware:3.1a:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_4706f_firmware:2.3b:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_4706_firmware:2.3b:*:*:*:*:*:*:*
cpe:2.3:o:korenix:jetwave_4510_firmware:3.0b:*:*:*:*:*:*:*
cpe:2.3:o:westermo:pmi-110-f2g_firmware:1.5:*:*:*:*:*:*:*

More vulnerabilities in Pepperl-fuchs Es7510-xt Firmware

CVE-2020-12501 — Critical (CVSS 9.8): Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT,…
CVE-2020-12500 — Critical (CVSS 9.8): Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT,…
CVE-2020-12502 — High (CVSS 8.8): Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT,…
CVE-2020-12503 — High (CVSS 7.2): Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT,…

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