How severe is CVE-2026-57915?

CVE-2026-57915 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-57915 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-57915?

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-2026-57915 have an EU (EUVD) identifier?

Yes. CVE-2026-57915 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39650.

When was CVE-2026-57915 published?

CVE-2026-57915 was published on 2026-06-26 and last updated on 2026-06-30.

CVE-2026-57915

CVE-2026-57915 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. 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-304.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39650
Weakness: CWE-304
Published: 2026-06-26
Last modified: 2026-06-30

Description

It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue.

Frequently asked questions

What is CVE-2026-57915?: It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue.
How severe is CVE-2026-57915?: CVE-2026-57915 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-57915 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-57915?: 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-2026-57915 have an EU (EUVD) identifier?: Yes. CVE-2026-57915 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39650.
When was CVE-2026-57915 published?: CVE-2026-57915 was published on 2026-06-26 and last updated on 2026-06-30.

References

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