How severe is CVE-2023-6545?

CVE-2023-6545 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-6545 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6545?

CVE-2023-6545 affects Beckhoff Authelia-bhf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6545?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-6545 published?

CVE-2023-6545 was published on 2023-12-14 and last updated on 2026-06-17.

CVE-2023-6545

CVE-2023-6545 is a medium-severity vulnerability in Beckhoff Authelia-bhf with a CVSS 3.x base score of 4.7. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Beckhoff Authelia-bhf
Published: 2023-12-14
Last modified: 2026-06-17

Description

The package authelia-bhf included in Beckhoffs TwinCAT/BSD is prone to an open redirect that allows a remote unprivileged attacker to redirect a user to another site. This may have limited impact to integrity and does solely affect anthelia-bhf the Beckhoff fork of authelia.

Frequently asked questions

What is CVE-2023-6545?: The package authelia-bhf included in Beckhoffs TwinCAT/BSD is prone to an open redirect that allows a remote unprivileged attacker to redirect a user to another site. This may have limited impact to integrity and does solely affect anthelia-bhf the Beckhoff fork of authelia.
How severe is CVE-2023-6545?: CVE-2023-6545 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-6545 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6545?: CVE-2023-6545 affects Beckhoff Authelia-bhf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6545?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-6545 published?: CVE-2023-6545 was published on 2023-12-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:beckhoff:authelia-bhf:*:*:*:*:*:*:*:*

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