# ELSA-2021-0809: wpa_supplicant security update

ELSA-2021-0809, released March 11, 2021, fixes 1 CVE in wpa_supplicant (version 1:2.9-2.el8_3.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2021-0809
- Platform: Linux
- Released: Mar 11, 2021
- Priority: High (Closes CVE-2021-27803, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2021-0809.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [wpa_supplicant](https://patchblox.com/security/data/product/linux/wpa-supplicant.md) | ol 8 | 1:2.9-2.el8_3.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-27803](https://patchblox.com/security/data/cve/CVE-2021-27803.md) | High | wpa_supplicant: The wpa_supplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and va... | 7.5 | 0.0123 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo