# CVE-2020-10531: Node.js 10: An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. CVE-2020-10531 is fixed in 19 products on 2 platforms, first by icu-devtools 60.2-3ubuntu3.1, released March 12, 2020. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2020-10531 - Priority: High - CVSS: 8.8 (Important) - EPSS: 0.0267 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Mar 12, 2020 - Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-10531 ## Description An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Node.js 10 | 10.23.2 | [Node.js 10 10.23.2](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.10-10.23.2.md) | Jan 26, 2021 | | Linux | chromium-browser Ubuntu 18.04.6 LTS (bionic) | 80.0.3987.149-0ubuntu0.18.04.1 | [chromium-browser 80.0.3987.149-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-80.0.3987.149-0ubuntu0.18.04.1.md) | Mar 23, 2020 | | Linux | chromium-browser-l10n Ubuntu 18.04.6 LTS (bionic) | 80.0.3987.149-0ubuntu0.18.04.1 | [chromium-browser-l10n 80.0.3987.149-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-l10n-80.0.3987.149-0ubuntu0.18.04.1.md) | Mar 23, 2020 | | Linux | chromium-chromedriver Ubuntu 18.04.6 LTS (bionic) | 80.0.3987.149-0ubuntu0.18.04.1 | [chromium-chromedriver 80.0.3987.149-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-chromedriver-80.0.3987.149-0ubuntu0.18.04.1.md) | Mar 23, 2020 | | Linux | chromium-codecs-ffmpeg Ubuntu 18.04.6 LTS (bionic) | 80.0.3987.149-0ubuntu0.18.04.1 | [chromium-codecs-ffmpeg 80.0.3987.149-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-80.0.3987.149-0ubuntu0.18.04.1.md) | Mar 23, 2020 | | Linux | chromium-codecs-ffmpeg-extra Ubuntu 18.04.6 LTS (bionic) | 80.0.3987.149-0ubuntu0.18.04.1 | [chromium-codecs-ffmpeg-extra 80.0.3987.149-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-extra-80.0.3987.149-0ubuntu0.18.04.1.md) | Mar 23, 2020 | | Linux | icu RHEL 8 | 0:60.3-2.el8_1 | [RHSA-2020:0902](https://patchblox.com/security/data/fix/linux/rhsa-2020-0902.md) | Mar 19, 2020 | | Linux | icu ol 8 | 0:60.3-2.el8_1 | [ELSA-2020-0902](https://patchblox.com/security/data/fix/linux/elsa-2020-0902.md) | Mar 19, 2020 | | Linux | icu-devtools Ubuntu 18.04.6 LTS (bionic) | 60.2-3ubuntu3.1 | [icu-devtools 60.2-3ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-icu-devtools-60.2-3ubuntu3.1.md) | Mar 12, 2020 | | Linux | libicu RHEL 8 | 0:60.3-2.el8_1 | [RHSA-2020:0902](https://patchblox.com/security/data/fix/linux/rhsa-2020-0902.md) | Mar 19, 2020 | | Linux | libicu ol 8 | 0:60.3-2.el8_1 | [ELSA-2020-0902](https://patchblox.com/security/data/fix/linux/elsa-2020-0902.md) | Mar 19, 2020 | | Linux | libicu-devel RHEL 8 | 0:60.3-2.el8_1 | [RHSA-2020:0902](https://patchblox.com/security/data/fix/linux/rhsa-2020-0902.md) | Mar 19, 2020 | | Linux | libicu-devel ol 8 | 0:60.3-2.el8_1 | [ELSA-2020-0902](https://patchblox.com/security/data/fix/linux/elsa-2020-0902.md) | Mar 19, 2020 | | Linux | libicu-doc RHEL 8 | 0:60.3-2.el8_1 | [RHSA-2020:0902](https://patchblox.com/security/data/fix/linux/rhsa-2020-0902.md) | Mar 19, 2020 | | Linux | libicu-doc ol 8 | 0:60.3-2.el8_1 | [ELSA-2020-0902](https://patchblox.com/security/data/fix/linux/elsa-2020-0902.md) | Mar 19, 2020 | | Linux | libicu60 Ubuntu 18.04.6 LTS (bionic) | 60.2-3ubuntu3.1 | [libicu60 60.2-3ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libicu60-60.2-3ubuntu3.1.md) | Mar 12, 2020 | | Linux | libiculx60 Ubuntu 18.04.6 LTS (bionic) | 60.2-3ubuntu3.1 | [libiculx60 60.2-3ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libiculx60-60.2-3ubuntu3.1.md) | Mar 12, 2020 | | Linux | nodejs RHEL 8 | 1:10.19.0-2.module+el8.1.0+6118+5aaa808b | [RHSA-2020:1317](https://patchblox.com/security/data/fix/linux/rhsa-2020-1317.md) | Apr 6, 2020 | | Linux | nodejs ol 8 | 1:12.16.1-2.module+el8.1.0+5571+5eb2ddd1 | [ELSA-2020-1293](https://patchblox.com/security/data/fix/linux/elsa-2020-1293.md) | Apr 2, 2020 | | Linux | nodejs-devel RHEL 8 | 1:10.19.0-2.module+el8.1.0+6118+5aaa808b | [RHSA-2020:1317](https://patchblox.com/security/data/fix/linux/rhsa-2020-1317.md) | Apr 6, 2020 | | Linux | nodejs-devel ol 8 | 1:12.16.1-2.module+el8.1.0+5571+5eb2ddd1 | [ELSA-2020-1293](https://patchblox.com/security/data/fix/linux/elsa-2020-1293.md) | Apr 2, 2020 | | Linux | nodejs-docs RHEL 8 | 1:10.19.0-2.module+el8.1.0+6118+5aaa808b | [RHSA-2020:1317](https://patchblox.com/security/data/fix/linux/rhsa-2020-1317.md) | Apr 6, 2020 | | Linux | nodejs-docs ol 8 | 1:12.16.1-2.module+el8.1.0+5571+5eb2ddd1 | [ELSA-2020-1293](https://patchblox.com/security/data/fix/linux/elsa-2020-1293.md) | Apr 2, 2020 | | Linux | nodejs-nodemon RHEL 8 | 0:1.18.3-1.module+el8+2632+6c5111ed | [RHSA-2020:1317](https://patchblox.com/security/data/fix/linux/rhsa-2020-1317.md) | Apr 6, 2020 | | Linux | nodejs-nodemon ol 8 | 0:1.18.3-1.module+el8.1.0+5393+aaf413e3 | [ELSA-2020-1293](https://patchblox.com/security/data/fix/linux/elsa-2020-1293.md) | Apr 2, 2020 | | Linux | nodejs-packaging RHEL 8 | 0:17-3.module+el8+2873+aa7dfd9a | [RHSA-2020:1317](https://patchblox.com/security/data/fix/linux/rhsa-2020-1317.md) | Apr 6, 2020 | | Linux | nodejs-packaging ol 8 | 0:17-3.module+el8.1.0+5393+aaf413e3 | [ELSA-2020-1293](https://patchblox.com/security/data/fix/linux/elsa-2020-1293.md) | Apr 2, 2020 | | Linux | npm RHEL 8 | 1:6.13.4-1.10.19.0.2.module+el8.1.0+6118+5aaa808b | [RHSA-2020:1317](https://patchblox.com/security/data/fix/linux/rhsa-2020-1317.md) | Apr 6, 2020 | | Linux | npm ol 8 | 1:6.13.4-1.12.16.1.2.module+el8.1.0+5571+5eb2ddd1 | [ELSA-2020-1293](https://patchblox.com/security/data/fix/linux/elsa-2020-1293.md) | Apr 2, 2020 | --- Data as of 2026-11-08T13:06:02Z UTC. 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