How severe is CVE-2023-40545?

CVE-2023-40545 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40545 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-2023-40545?

CVE-2023-40545 affects Pingidentity Pingfederate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40545?

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

Does CVE-2023-40545 have an EU (EUVD) identifier?

Yes. CVE-2023-40545 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-45116.

When was CVE-2023-40545 published?

CVE-2023-40545 was published on 2024-02-06 and last updated on 2026-06-17.

CVE-2023-40545

CVE-2023-40545 is a high-severity vulnerability in Pingidentity Pingfederate with a CVSS 3.x base score of 8.8. 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-306.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-45116
Weakness: CWE-306
Affected product: Pingidentity Pingfederate
Published: 2024-02-06
Last modified: 2026-06-17

Description

Authentication bypass when an OAuth2 Client is using client_secret_jwt as its authentication method on affected 11.3 versions via specially crafted requests.

Frequently asked questions

What is CVE-2023-40545?: Authentication bypass when an OAuth2 Client is using client_secret_jwt as its authentication method on affected 11.3 versions via specially crafted requests.
How severe is CVE-2023-40545?: CVE-2023-40545 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40545 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-2023-40545?: CVE-2023-40545 affects Pingidentity Pingfederate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40545?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-40545 have an EU (EUVD) identifier?: Yes. CVE-2023-40545 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-45116.
When was CVE-2023-40545 published?: CVE-2023-40545 was published on 2024-02-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pingidentity:pingfederate:11.3.0:*:*:*:*:*:*:*

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