OpenWrt 21.02.3 Third service release

Hauke Mehrtens hauke at
Wed Apr 20 15:21:32 PDT 2022


The OpenWrt community is proud to announce the third service release of 
OpenWrt 21.02. It fixes security issues, improves device support, and 
brings a few bug fixes.

We recently moved our bugs to GitHub, please report issues over there 
(after checking that nobody else posted the same issue before).

Download firmware images via the Firmware Selector or directly from our 
download servers:
	• https://firmware-selector.openwrt.org

Main changes from OpenWrt 21.02.2:

Security fixes

  * wolfssl: Fix multiple security problems
    (CVE-2022-25638, CVE-2022-25640)
  * openssl: Fix security problem (CVE-2022-0778)
  * zlib: Backport security fix for a reproducible crash in compressor

Device support

  * Support for the following devices was added:
    * Yuncore XD3200
    * Yuncore A930
    * MikroTik RouterBOARD mAPL-2nD (mAP lite)
  * ramips: Make memory detection more reliable
  * ramips: Fix reboot for remaining 32 MB boards
  * x86: Add pata_sis driver
  * ipTIME mt7620 devices: Fix flash detection
  * Turris Omnia: Improve detection of u-boot environment with
    U-boot 2021.09
  * Ubiquiti UniFi: Fix label MAC address
  * mvebu: udpu: Fix initramfs booting
  * a20-olinuxino-lime2: Fix Ethernet link detection on
  * TP-Link TL-WR1043ND v4: Fix TPLINK_HWREV field
  * OCEDO Raccoon: Fix link for long cables
  * Ubiquiti UniFi AP Outdoor+: Fix label MAC address
  * TP-Link WPA8630Pv2: Move to ath79-tiny target
  * Improve support for some GPON SFP modules

Various fixes and improvements

  * Fix SSL certificate validation with some sites especially sites
    using Let’s Encrypt certificates
  * hostapd fixes and improvemnts:
    * fix radius problem due to invalid attributes
    * Expose more data over ubus
  * base-files: Call “sync” after initial setup
  * imagebuilder: Fix broken image generation with external targets

Core components

  * Update Linux kernel from 5.4.179 to 5.4.188
  * Update openssl from 1.1.1m to 1.1.1n
  * Update cypress-firmware from 5.4.18-2020_0402 to 5.4.18-2021_0812
  * Update mac80211 from 5.10.85 to 5.10.110
  * Update wolfssl from 5.1.1 to 5.2.0

Known issues

  * Some IPv6 packets are dropped when software flow offloading is used:
    * As a workaround, do not activate software flow offloading, it is
      deactivate by default.

Full release notes and upgrade instructions are available at

In particular, make sure to read the regressions and known issues before 

For a detailed list of all changes since 21.02.2, refer to

To download the 21.02.3 images, navigate to:

As always, a big thank you goes to all our active package maintainers,
testers, documenters, and supporters.

Have fun!

The OpenWrt Community


To stay informed of new OpenWrt releases and security advisories, there
are new channels available:

  * a low-volume mailing list for important announcements:

  * a dedicated "announcements" section in the forum:

  * other announcement channels (such as RSS feeds) might be added in the
    future, they will be listed at

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