# RHSA-2020:4539: Security update for 5 packages

RHSA-2020:4539, released November 4, 2020, fixes 1 CVE across 5 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2020-4539
- Platform: Linux
- Released: Nov 4, 2020
- Priority: High (Closes CVE-2019-20454, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2020:4539

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [pcre2](https://patchblox.com/security/data/product/linux/pcre2.md) | RHEL 8 | 0:10.32-2.el8 |
| [pcre2-devel](https://patchblox.com/security/data/product/linux/pcre2-devel.md) | RHEL 8 | 0:10.32-2.el8 |
| [pcre2-tools](https://patchblox.com/security/data/product/linux/pcre2-tools.md) | RHEL 8 | 0:10.32-2.el8 |
| [pcre2-utf16](https://patchblox.com/security/data/product/linux/pcre2-utf16.md) | RHEL 8 | 0:10.32-2.el8 |
| [pcre2-utf32](https://patchblox.com/security/data/product/linux/pcre2-utf32.md) | RHEL 8 | 0:10.32-2.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-20454](https://patchblox.com/security/data/cve/CVE-2019-20454.md) | High | php-cli: PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.  The following packages have be... | 7.5 | 0.0156 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo