How severe is CVE-2026-20746?

CVE-2026-20746 has a CVSS 4.0 base score of 6.3, rated medium severity.

Is CVE-2026-20746 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-20746?

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

Does CVE-2026-20746 have an EU (EUVD) identifier?

Yes. CVE-2026-20746 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36374.

When was CVE-2026-20746 published?

CVE-2026-20746 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-20746

CVE-2026-20746 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.3. 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-401.

Key facts

Severity: Medium (CVSS 4.0 base score 6.3)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36374
Weakness: CWE-401
Published: 2026-06-12
Last modified: 2026-06-17

Description

Virtual attribute handling in Ping Identity PingDirectory in affected versions allows only authorized users to exhaust java memory heap when recent login history is enabled and copying virtual attributes that reference ds-privilege-name values.

Frequently asked questions

What is CVE-2026-20746?: Virtual attribute handling in Ping Identity PingDirectory in affected versions allows only authorized users to exhaust java memory heap when recent login history is enabled and copying virtual attributes that reference ds-privilege-name values.
How severe is CVE-2026-20746?: CVE-2026-20746 has a CVSS 4.0 base score of 6.3, rated medium severity.
Is CVE-2026-20746 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-20746?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-20746 have an EU (EUVD) identifier?: Yes. CVE-2026-20746 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36374.
When was CVE-2026-20746 published?: CVE-2026-20746 was published on 2026-06-12 and last updated on 2026-06-17.

References

Other CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities

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CVE-2024-25450 — High (CVSS 8.8): imlib2 v1.9.1 was discovered to mishandle memory allocation in the function init_imlib_fonts().
CVE-2023-33718 — High (CVSS 8.8): mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp
CVE-2021-40633 — High (CVSS 8.8): A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of…
CVE-2021-3492 — High (CVSS 8.8): Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring…

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