# RHSA-2020:3832: firefox security update

RHSA-2020:3832, released September 24, 2020, fixes 4 CVEs in firefox (version 0:78.3.0-1.el8_2). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2020-3832
- Platform: Linux
- Released: Sep 24, 2020
- Priority: High (Closes CVE-2020-15673, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2020:3832

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | RHEL 8 | 0:78.3.0-1.el8_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-15673](https://patchblox.com/security/data/cve/CVE-2020-15673.md) | High | Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. | 8.8 | 0.0196 |  |
| [CVE-2020-15678](https://patchblox.com/security/data/cve/CVE-2020-15678.md) | High | Firefox ESR and 2 others: When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting… | 8.8 | 0.0188 |  |
| [CVE-2020-15677](https://patchblox.com/security/data/cve/CVE-2020-15677.md) | Routine | Firefox ESR and 2 others: By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed… | 6.1 | 0.0166 |  |
| [CVE-2020-15676](https://patchblox.com/security/data/cve/CVE-2020-15676.md) | Routine | Firefox ESR and 2 others: Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting… | 6.1 | 0.0159 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo