# ALSA-2021:4387: libssh-devel security update

ALSA-2021:4387, released November 9, 2021, fixes 1 CVE in libssh-devel (version 0.9.4-3.el8). None of them is reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/fix/linux/alsa-2021-4387
- Platform: Linux
- Released: Nov 9, 2021
- Priority: Routine (Closes CVE-2020-16135)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/ALSA-2021:4387

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libssh-devel](https://patchblox.com/security/data/product/linux/libssh-devel.md) | almalinux 8 | 0.9.4-3.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-16135](https://patchblox.com/security/data/cve/CVE-2020-16135.md) | Routine | libssh: libssh is a library which implements the SSH protocol | 5.9 | 0.0411 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo