# CVE-2021-0326: wpa_supplicant: Fix buffer overflow when processing P2P group information

CVE-2021-0326 is fixed in 4 products on 1 platform, first by hostapd 2:2.6-15ubuntu2.7, released February 9, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-0326
- Priority: High
- CVSS: 7.5 (MODERATE)
- EPSS: 0.0497
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 9, 2021

## Description

Fix buffer overflow when processing P2P group information

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hostapd Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.7 | [hostapd 2:2.6-15ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-hostapd-2-2.6-15ubuntu2.7.md) | Feb 9, 2021 |
| Linux | hostapd Ubuntu 20.04 LTS (focal) | 2:2.9-1ubuntu4.2 | [hostapd 2:2.9-1ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-hostapd-2-2.9-1ubuntu4.2.md) | Feb 9, 2021 |
| Linux | wpa_supplicant RHEL 8 | 1:2.9-5.el8 | [RHSA-2021:1686](https://patchblox.com/security/data/fix/linux/rhsa-2021-1686.md) | May 18, 2021 |
| Linux | wpa_supplicant ol 8 | 1:2.9-5.el8 | [ELSA-2021-1686](https://patchblox.com/security/data/fix/linux/elsa-2021-1686.md) | May 25, 2021 |
| Linux | wpagui Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.7 | [wpagui 2:2.6-15ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-wpagui-2-2.6-15ubuntu2.7.md) | Feb 9, 2021 |
| Linux | wpagui Ubuntu 20.04 LTS (focal) | 2:2.9-1ubuntu4.2 | [wpagui 2:2.9-1ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wpagui-2-2.9-1ubuntu4.2.md) | Feb 9, 2021 |
| Linux | wpasupplicant Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.7 | [wpasupplicant 2:2.6-15ubuntu2.7](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-wpasupplicant-2-2.6-15ubuntu2.7.md) | Feb 9, 2021 |
| Linux | wpasupplicant Ubuntu 20.04 LTS (focal) | 2:2.9-1ubuntu4.2 | [wpasupplicant 2:2.9-1ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wpasupplicant-2-2.9-1ubuntu4.2.md) | Feb 9, 2021 |

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Data as of 2026-11-11T19:49:26Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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