# CVE-2021-45977: IntelliJ IDEA Community Edition and 5 others: JetBrains IntelliJ IDEA 2021.3.1 Preview, IntelliJ IDEA 2021.3.1 RC, PyCharm Professional 2021.3.1 RC,…

CVE-2021-45977 is fixed in 6 products on 1 platform, first by RubyMine 2021.3.2, released January 26, 2022. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2021-45977
- Priority: Urgent
- CVSS: 9.8
- EPSS: 0.0108
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 25, 2022
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-45977

## Description

JetBrains IntelliJ IDEA 2021.3.1 Preview, IntelliJ IDEA 2021.3.1 RC, PyCharm Professional 2021.3.1 RC, GoLand 2021.3.1, PhpStorm 2021.3.1 Preview, PhpStorm 2021.3.1 RC, RubyMine 2021.3.1 Preview, RubyMine 2021.3.1 RC, CLion 2021.3.1, WebStorm 2021.3.1 Preview, and WebStorm 2021.3.1 RC (used as Remote Development backend IDEs) bind to the 0.0.0.0 IP address. The fixed versions are: IntelliJ IDEA 2021.3.1, PyCharm Professional 2021.3.1, GoLand 2021.3.2, PhpStorm 2021.3.1 (213.6461.83), RubyMine 2021.3.1, CLion 2021.3.2, and WebStorm 2021.3.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | IntelliJ IDEA Community Edition | 2021.3.2 | [IntelliJ IDEA Community Edition 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.community-2021.3.2.md) | Jan 27, 2022 |
| Windows apps | IntelliJ IDEA Ultimate Edition | 2021.3.2 | [IntelliJ IDEA Ultimate Edition 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2021.3.2.md) | Jan 27, 2022 |
| Windows apps | PyCharm Community Edition | 2021.3.2 | [PyCharm Community Edition 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.pycharm.community-2021.3.2.md) | Jan 27, 2022 |
| Windows apps | PyCharm Professional Edition | 2021.3.2 | [PyCharm Professional Edition 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.pycharm.professional-2021.3.2.md) | Jan 27, 2022 |
| Windows apps | RubyMine | 2021.3.2 | [RubyMine 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.rubymine-2021.3.2.md) | Jan 26, 2022 |
| Windows apps | WebStorm | 2021.3.2 | [WebStorm 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.webstorm-2021.3.2.md) | Jan 31, 2022 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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