# RHSA-2020:0577: thunderbird security update

RHSA-2020:0577, released February 24, 2020, fixes 6 CVEs in thunderbird (version 0:68.5.0-1.el8_1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2020-0577
- Platform: Linux
- Released: Feb 24, 2020
- Priority: High (Closes CVE-2020-6800, high severity)
- CVEs: 6, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2020:0577

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [thunderbird](https://patchblox.com/security/data/product/linux/thunderbird.md) | RHEL 8 | 0:68.5.0-1.el8_1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-6800](https://patchblox.com/security/data/cve/CVE-2020-6800.md) | High | Firefox ESR: Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox… | 8.8 | 0.0226 |  |
| [CVE-2020-6798](https://patchblox.com/security/data/cve/CVE-2020-6798.md) | Routine | Firefox ESR: If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing… | 6.1 | 0.0205 |  |
| [CVE-2020-6793](https://patchblox.com/security/data/cve/CVE-2020-6793.md) | Routine | thunderbird: Mozilla Thunderbird is a standalone mail and newsgroup client.  This update upgrades Thunderbird to version 68.5.0.... | 6.5 | 0.0151 |  |
| [CVE-2020-6792](https://patchblox.com/security/data/cve/CVE-2020-6792.md) | Routine | thunderbird: Mozilla Thunderbird is a standalone mail and newsgroup client.  This update upgrades Thunderbird to version 68.5.0.... | 4.3 | 0.0133 |  |
| [CVE-2020-6795](https://patchblox.com/security/data/cve/CVE-2020-6795.md) | Routine | thunderbird: Mozilla Thunderbird is a standalone mail and newsgroup client.  This update upgrades Thunderbird to version 68.5.0.... | 6.5 | 0.0131 |  |
| [CVE-2020-6794](https://patchblox.com/security/data/cve/CVE-2020-6794.md) | Routine | thunderbird: Mozilla Thunderbird is a standalone mail and newsgroup client.  This update upgrades Thunderbird to version 68.5.0.... | 6.5 | 0.0102 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo