# RHSA-2020:4655: Security update for 3 packages

RHSA-2020:4655, released November 4, 2020, fixes 2 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2020-4655
- Platform: Linux
- Released: Nov 4, 2020
- Priority: High (Closes CVE-2019-18928, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2020:4655

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [cyrus-imapd](https://patchblox.com/security/data/product/linux/cyrus-imapd.md) | RHEL 8 | 0:3.0.7-19.el8 |
| [cyrus-imapd-utils](https://patchblox.com/security/data/product/linux/cyrus-imapd-utils.md) | RHEL 8 | 0:3.0.7-19.el8 |
| [cyrus-imapd-vzic](https://patchblox.com/security/data/product/linux/cyrus-imapd-vzic.md) | RHEL 8 | 0:3.0.7-19.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-18928](https://patchblox.com/security/data/cve/CVE-2019-18928.md) | High | cyrus-admin: Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilegeescalation because an HTTP request may be interp... | 9.8 | 0.0239 |  |
| [CVE-2019-19783](https://patchblox.com/security/data/cve/CVE-2019-19783.md) | Routine | cyrus-imapd-vzic: The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support.  Security F... | 6.5 | 0.0166 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo