Is CVE-2026-53914 in the CISA KEV catalog?

No. CVE-2026-53914 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-53914?

CVE-2026-53914 has a CVSS v3 base score of 6.7 (MEDIUM).

What is the EPSS score for CVE-2026-53914?

CVE-2026-53914 has an EPSS score of 0.20% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-53914?

Upgrade kotlin to 2.4.20 or later.

CVE & CISA-KEV Catalog

CVE-2026-53914

MEDIUM

6.7

CVSS v3

NVD

Description

In JetBrains Kotlin before 2.4.20 code execution was possible via unsafe deserialization in the build cache metadata

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

kotlinNVD

Affected:< 2.4.20Fixed in:2.4.20CVE-2026-53914derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

Exploit Intelligence

0.20%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Vendor Advisory1

jetbrains.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-27.