OpenWrt 21.02.5 - Service Release - 17 October 2022

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 OpenWrt 21.02.5, r16688-fa9a932fdb
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The OpenWrt community is proud to announce the newest stable release of the OpenWrt 21.02 stable version series. It fixes security issues.

Download firmware images via the Firmware Selector or directly from our download servers:

• Download firmware image for your device (firmware selector)
• Download firmware images directly from OpenWrt download servers

An upgrade from OpenWrt 19.07 or 22.02 to OpenWrt 21.02.5 is supported in many cases with the help of the sysupgrade utility which will also attempt to preserve the configuration. A configuration backup is advised nonetheless when upgrading to OpenWrt 21.02. (see “Upgrading” below).

The OpenWrt 21.02 stable series is in security maintenance only mode. It is projected to go end of life on 6. April 2023 following the OpenWrt Security support guidelines. We encourage all users of the OpenWrt 21.02 stable series to upgrade to OpenWrt 22.03.

The OpenWrt project is a Linux operating system targeting embedded devices. It is a complete replacement for the vendor-supplied firmware of a wide range of wireless routers and non-network devices. See the Table of Hardware for supported devices. For more information about OpenWrt project organization, see the About OpenWrt pages.

Do you want to be informed about important changes such as new releases and security fixes?

We have a new mailing list for this, as well as RSS options: see Important changes and announcements.

Only the main changes are listed below. See changelog-21.02.5 for the full changelog.

• mac80211/cfg80211: Security fixes for BSSID parsing (CVE-2022-41674, CVE-2022-42719, CVE-2022-42720, CVE-2022-42721 and CVE-2022-42722)
  • See 2022-10-17-1

• None

• None

• None

Upgrading from OpenWrt 21.02 is straightforward thanks to the sysupgrade utility: sysupgrade from web interface or sysupgrade from command-line.

An upgrade from OpenWrt 19.07 to OpenWrt 21.02 is supported in many cases, including preserving configuration. A configuration backup is advised nonetheless when upgrading from OpenWrt 19.07.

None so far.

See reporting bugs if you encounter issues with this release.