How severe is CVE-2020-15824?

CVE-2020-15824 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-2020-15824 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15824?

CVE-2020-15824 primarily affects Jetbrains Kotlin. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-15824?

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.

When was CVE-2020-15824 published?

CVE-2020-15824 was published on 2020-08-08 and last updated on 2026-06-17.

CVE-2020-15824

CVE-2020-15824 is a high-severity vulnerability in Jetbrains Kotlin 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-269.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Jetbrains Kotlin
Published: 2020-08-08
Last modified: 2026-06-17

Description

In JetBrains Kotlin from 1.4-M1 to 1.4-RC (as Kotlin 1.3.7x is not affected by the issue. Fixed version is 1.4.0) there is a script-cache privilege escalation vulnerability due to kotlin-main-kts cached scripts in the system temp directory, which is shared by all users by default.

Frequently asked questions

What is CVE-2020-15824?: In JetBrains Kotlin from 1.4-M1 to 1.4-RC (as Kotlin 1.3.7x is not affected by the issue. Fixed version is 1.4.0) there is a script-cache privilege escalation vulnerability due to kotlin-main-kts cached scripts in the system temp directory, which is shared by all users by default.
How severe is CVE-2020-15824?: CVE-2020-15824 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-2020-15824 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15824?: CVE-2020-15824 primarily affects Jetbrains Kotlin. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-15824?: 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.
When was CVE-2020-15824 published?: CVE-2020-15824 was published on 2020-08-08 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:jetbrains:kotlin:1.4.0:milestone1:*:*:*:*:*:*
cpe:2.3:a:jetbrains:kotlin:1.4.0:milestone2:*:*:*:*:*:*
cpe:2.3:a:jetbrains:kotlin:1.4.0:milestone3:*:*:*:*:*:*
cpe:2.3:a:jetbrains:kotlin:1.4.0:rc:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_extensibility_workbench:14.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_extensibility_workbench:14.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_extensibility_workbench:14.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*

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