How severe is CVE-2020-12495?

CVE-2020-12495 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2020-12495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12495?

CVE-2020-12495 primarily affects Endress Rsg35 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12495?

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-2020-12495 published?

CVE-2020-12495 was published on 2020-11-19 and last updated on 2026-06-17.

CVE-2020-12495

CVE-2020-12495 is a critical-severity vulnerability in Endress Rsg35 Firmware with a CVSS 3.x base score of 9.1. 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-269.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.5
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Endress Rsg35 Firmware
Published: 2020-11-19
Last modified: 2026-06-17

Description

Endress+Hauser Ecograph T (Neutral/Private Label) (RSG35, ORSG35) with Firmware version prior to V2.0.0 is prone to improper privilege management. The affected device has a web-based user interface with a role-based access system. Users with different roles have different write and read privileges. The access system is based on dynamic "tokens". The vulnerability is that user sessions are not closed correctly and a user with fewer rights is assigned the higher rights when he logs on.

Frequently asked questions

What is CVE-2020-12495?: Endress+Hauser Ecograph T (Neutral/Private Label) (RSG35, ORSG35) with Firmware version prior to V2.0.0 is prone to improper privilege management. The affected device has a web-based user interface with a role-based access system. Users with different roles have different write and read privileges. The access system is based on dynamic "tokens". The vulnerability is that user sessions are not closed correctly and a user with fewer rights is assigned the higher rights when he logs on.
How severe is CVE-2020-12495?: CVE-2020-12495 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2020-12495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12495?: CVE-2020-12495 primarily affects Endress Rsg35 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12495?: 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-2020-12495 published?: CVE-2020-12495 was published on 2020-11-19 and last updated on 2026-06-17.

References

https://cert.vde.com/en-us/advisories/vde-2020-021

Affected products (4)

cpe:2.3:o:endress:rsg35_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:endress:rsg45_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:endress:orsg35_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:endress:orsg45_firmware:*:*:*:*:*:*:*:*

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