VDB-169135 · CVE-2020-29582 · GCVE-0-2020-29582

JetBrains Kotlin up to 1.4.20 Java API temp file

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in JetBrains Kotlin up to 1.4.20. Affected is an unknown function of the component Java API. This manipulation causes temp file. This vulnerability is registered as CVE-2020-29582. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in JetBrains Kotlin up to 1.4.20. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Java API. The manipulation with an unknown input leads to a temp file vulnerability. The CWE definition for the vulnerability is CWE-377. Creating and using insecure temporary files can leave application and system data vulnerable to attack. As an impact it is known to affect confidentiality.

The weakness was published 02/03/2021. It is possible to read the advisory at blog.jetbrains.com. This vulnerability is known as CVE-2020-29582. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.4.21 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

JetBrains

Name

Kotlin

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Temp file
CWE: CWE-377
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kotlin 1.4.21

Timelineinfo

12/06/2020 🔍
02/03/2021 +59 days 🔍
02/03/2021 +0 days 🔍
02/25/2026 +1848 days 🔍

Sourcesinfo

Advisory: blog.jetbrains.com
Status: Confirmed

CVE: CVE-2020-29582 (🔍)
GCVE (CVE): GCVE-0-2020-29582
GCVE (VulDB): GCVE-100-169135

Entryinfo

Created: 02/03/2021 19:23
Updated: 02/25/2026 12:27
Changes: 02/03/2021 19:23 (38), 02/23/2021 10:08 (5), 02/25/2026 12:27 (33)
Complete: 🔍
Cache ID: 216::103