# CVE-2018-16084: chromium-browser: The default selected dialog button in CustomHandlers in Google Chrome prior to 69.0.3497.81 allowed a remote attacker...

CVE-2018-16084 is fixed in 5 products on 1 platform, first by chromium-browser 69.0.3497.81-0ubuntu0.18.04.1, released June 27, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-16084
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0108
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 9, 2019

## Description

The default selected dialog button in CustomHandlers in Google Chrome prior to 69.0.3497.81 allowed a remote attacker who convinced the user to perform certain operations to open external programs via a crafted HTML page.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | chromium-browser Ubuntu 18.04.6 LTS (bionic) | 69.0.3497.81-0ubuntu0.18.04.1 | [chromium-browser 69.0.3497.81-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-69.0.3497.81-0ubuntu0.18.04.1.md) | Jun 27, 2019 |
| Linux | chromium-browser-l10n Ubuntu 18.04.6 LTS (bionic) | 69.0.3497.81-0ubuntu0.18.04.1 | [chromium-browser-l10n 69.0.3497.81-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-browser-l10n-69.0.3497.81-0ubuntu0.18.04.1.md) | Jun 27, 2019 |
| Linux | chromium-chromedriver Ubuntu 18.04.6 LTS (bionic) | 69.0.3497.81-0ubuntu0.18.04.1 | [chromium-chromedriver 69.0.3497.81-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-chromedriver-69.0.3497.81-0ubuntu0.18.04.1.md) | Jun 27, 2019 |
| Linux | chromium-codecs-ffmpeg Ubuntu 18.04.6 LTS (bionic) | 69.0.3497.81-0ubuntu0.18.04.1 | [chromium-codecs-ffmpeg 69.0.3497.81-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-69.0.3497.81-0ubuntu0.18.04.1.md) | Jun 27, 2019 |
| Linux | chromium-codecs-ffmpeg-extra Ubuntu 18.04.6 LTS (bionic) | 69.0.3497.81-0ubuntu0.18.04.1 | [chromium-codecs-ffmpeg-extra 69.0.3497.81-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-chromium-codecs-ffmpeg-extra-69.0.3497.81-0ubuntu0.18.04.1.md) | Jun 27, 2019 |

---

Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.
