Versie 25.12.5 van OpenWrt is uitgekomen. Daarin zijn onder andere een paar belangrijks bugfixes voor bekende kwetsbaarheden doorgevoerd.
OpenWrt is alternatieve opensourcefirmware voor een groot aantal verschillende routers en embedded devices. Door middel van het apk-packagemanagementsysteem is er de mogelijkheid om zelf te bepalen wat de router allemaal wel en niet kan. Ook op GoT zijn er diverse mensen actief mee bezig: zie daarvoor dit topic. Bijwerken van de versie kan met een Attended Sysupgrade, handmatig met een voorgecompileerde firmwareversie van het apparaat dat je gebruikt of compileer je eigen variant met de firmwareselectie. De changelog voor deze uitgave kan hieronder worden gevonden.
Main changes between OpenWrt 25.12.4 and OpenWrt 25.12.5
Only the main changes are listed below. See the full changelog for details.
Security fixes
This release fixes several remotely triggerable vulnerabilities in core network services that are enabled by default. Updating is strongly recommended.
- odhcpd (DHCPv6/DHCPv4/RA server, enabled by default): multiple vulnerabilities reachable by a network-adjacent attacker were fixed by updating odhcpd:
- CVE-2026-53921 (Critical): stack buffer overflow in the DHCPv6 IA reply serialization, triggerable with crafted DHCPv6 REQUEST packets. https://github.com/openwrt/odhcpd/security/advisories/GHSA-7fwx-hhrg-3496
- CVE-2026-53918 (High): use-after-free in the DHCPv6 IA handler. https://github.com/openwrt/odhcpd/security/advisories/GHSA-44ff-jcwh-wgc2
- CVE-2026-53920 (High): stack memory disclosure via a truncated DHCPv6 IA_NA/IA_PD option. https://github.com/openwrt/odhcpd/security/advisories/GHSA-p769-5v73-pc4f
- CVE-2026-53922 (Moderate): pre-auth denial of service via a size_t underflow in DHCPv6 IA handling. https://github.com/openwrt/odhcpd/security/advisories/GHSA-7hcw-g2jh-pqv5
- CVE-2026-55606 (Moderate): stack buffer overread caused by a DUID length endianness mismatch. https://github.com/openwrt/odhcpd/security/advisories/GHSA-x8x4-7gvf-gp45
- No CVE assigned (Moderate, CVSS 5.4): the NDP relay accepted IPv6 Neighbor Solicitations with a hop limit other than 255 (RFC 4861 violation), letting an off-link attacker spoof NS packets through the relay (neighbor-cache poisoning, traffic redirection or DoS). Only relevant when the NDP relay is enabled. https://github.com/openwrt/odhcpd/security/advisories/GHSA-qvg7-9jf5-wgjc
- odhcpd / LuCI stored XSS (Critical): an unauthenticated DHCPv6 client could inject lease-file lines through a crafted FQDN hostname, resulting in stored cross-site scripting on the LuCI DHCPv6 leases status page. Fixed by escaping client hostnames in the lease state file. https://github.com/openwrt/openwrt/security/advisories/GHSA-hhmc-92hw-535f
- uhttpd (web server): three HTTP request smuggling issues on keep-alive connections were fixed:
- CVE-2026-55612 (High): invalid chunk-length state reset. https://github.com/openwrt/uhttpd/security/advisories/GHSA-p55c-rmhc-qfm5
- CVE-2026-55614 (High): case-sensitive Transfer-Encoding matching. https://github.com/openwrt/uhttpd/security/advisories/GHSA-mcfg-c4r7-pjpf
- CVE-2026-55613 (Moderate): ubus POST body parse-error desync. https://github.com/openwrt/uhttpd/security/advisories/GHSA-wgwp-64hh-f52p
- cgi-io: ACL bypass / arbitrary file read (Moderate): a path-traversal flaw in the cgi-download handler let an authenticated user with wildcard read permission read any root-readable file (e.g.
/etc/shadow). https://github.com/openwrt/openwrt/security/advisories/GHSA-jw5r-xhf5-2xcq- LuCI (web interface): a set of issues in LuCI core modules and applications were fixed. Most let a logged-in user with limited (delegated) permissions escalate to root command execution; a few are stored XSS issues reachable by clients on the network. The privilege-escalation issues only apply if the affected app is installed and the account/ACL in question exists:
- luci-app-tailscale-community (Critical, CVSS 9.9): command injection allowing delegated users to run commands as root via
tailscale.do_login. https://github.com/openwrt/luci/security/advisories/GHSA-xwc5-mx58-rh35- luci-app-advanced-reboot (High): CVE-2026-55897 — a read ACL exposes
/bin/shviafile.exec, allowing delegated users to run commands as root. https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6- luci-app-adblock-fast (High): CVE-2026-55159 — delegated users can reach root command execution via newline-separated cron entries. https://github.com/openwrt/luci/security/advisories/GHSA-ggpf-xrph-wg5v
- luci-app-samba4 (High): a read ACL allows authenticated root command execution via the smbd
file.execpermission. https://github.com/openwrt/luci/security/advisories/GHSA-vx64-mmp7-h36c- luci-app-travelmate (High): a delegated UCI write can execute the travelmate auto-login command as root. https://github.com/openwrt/luci/security/advisories/GHSA-p35r-3323-6g7g
- luci-app-upnp (High): stored XSS — an unauthenticated LAN client can inject JavaScript via a UPnP port-mapping description. https://github.com/openwrt/luci/security/advisories/GHSA-8v49-6387-7f89
- luci-mod-network / luci-mod-status (High): stored XSS via a DHCPv6 lease hostname (FQDN) shown in the status tables. https://github.com/openwrt/luci/security/advisories/GHSA-686p-p8p9-x6fh
- luci-app-banip (High): a crafted LuCI login username can inject an arbitrary IP into banIP's log parser, causing the wrong address to be blocked. https://github.com/openwrt/luci/security/advisories/GHSA-r6hx-4f83-vp8m
- ead (Emergency Access Daemon): CVE-2026-55490 (Moderate): an integer underflow in
handle_send_a()allowed a pre-auth denial of service. https://github.com/openwrt/openwrt/security/advisories/GHSA-9558-77jp-g3fw- Linux kernel: update to 6.12.94, pulling in the upstream 6.12.88 through 6.12.94 stable releases, which fix multiple security vulnerabilities, such as CVE-2026-43500.
- OpenSSL: update to 3.5.7, fixing multiple security vulnerabilities (CVE-2026-7383, CVE-2026-9076, CVE-2026-34180, CVE-2026-34181, CVE-2026-34182, CVE-2026-34183, CVE-2026-42764, CVE-2026-42766, CVE-2026-42767, CVE-2026-42768, CVE-2026-42769, CVE-2026-42770, CVE-2026-45445, CVE-2026-45446, CVE-2026-45447).
- musl libc: backport upstream fixes for CVE-2026-6042 and CVE-2026-40200.
- dropbear (SSH): backport security fixes from upstream 2026.90 and 2026.91, including CVE-2019-6111 (a malicious server could trick the scp client into overwriting arbitrary local files) and CVE-2026-35385.
Beyond the issues listed above, this release fixes a number of further security problems for which no CVE number or dedicated advisory was assigned. We strongly recommend upgrading to the latest OpenWrt release and installing all available package updates.
Device support
New devices supported in 25.12.5:
- ipq40xx: Linksys MR9000
- mediatek (filogic): GL.iNET GL-MT3600BE
- mediatek (filogic): Huasifei WH3000R (NAND)
- mediatek (filogic): JioRouter AX6000 (JIDU6101)
- mediatek (filogic): netis EAP930 V1
- mediatek (filogic): netis MEX605
- mediatek (filogic): TP-Link F65 v1
- mediatek (filogic): Zbtlink ZBT-Z8106AX-S
- mvebu: Zyxel NAS326
- ramips (mt76x8): Cudy WR300 v1
- ramips (mt7621): I-O DATA WN-AX2033GR2
New image variants for already supported devices:
- mediatek (filogic): Qihoo 360T7 - add UBI layout image
- mediatek (filogic): Creatlentem CLT-R30B1 - add all-in-UBI layout image
- mediatek (filogic): Bazis AX3000WM - also recognized under its alternative name WD-R3000N-G2A
Device fixes:
- ath79: MikroTik - build
AG71XX_LEGACYas a module, fixing AR8216/AR8236/AR8316 switch bring-up on boot on some MikroTik devices (https://github.com/openwrt/openwrt/issues/23739)- mediatek: do not let devfreq power off the CPU (stability fix)
- mediatek (filogic): Wavlink WL-WN536AX6 rev A - several fixes (correct 5 GHz MAC address, MAC-address nvmem layout, NAND bad-block management, SPI drive strength, network LED)
- mediatek (filogic): Qihoo 360T7 - fix DDR3 rate
- mediatek: Acer Predator W6X - add LED boot status support
- ramips: PAX1800 Lite - fix label MAC device and avoid attaching both UBI partitions on boot
- ramips (mt76x8): Cudy LT300 v3 - fix backup partition offset
- rtl8367b: fix RTL8367S-VB VLAN multicast memory handling
- mvebu: uDPU / eDPU - convert to dual (A/B) firmware
- ipq806x: AP3935 - disable hibernation on LAN1
- airoha (an7581): platform improvements and upstream networking fixes
WiFi fixes and improvements
- wifi-scripts: fix a null dereference on 6 GHz-only radios
- wifi-scripts: fix EAP (802.1X) station mode in the wpa_supplicant configuration generator
- wifi-scripts: fix tracking of disabled virtual interfaces
- hostapd: fix a misplaced radar-detected (DFS) ubus notification
Network and service improvements
- New "network" LED trigger (lan/wan/wlan) for link and activity indication on supported devices
- odhcpd and odhcp6c received many DHCPv6/DHCPv4 and IPv6 prefix-delegation correctness and robustness fixes, on top of the security fixes listed above, including more stable DHCPv6 IAID handling
- More robust handling of invalid DHCP / DHCPv6 client identifiers
- ubus, rpcd, uhttpd, umdns, uclient and fstools updated with stability and hardening fixes
Other changes
kmod-nf-nathelper-extrawas split into individual per-protocol packages, so only the needed NAT helper modules have to be installed.- Matching the linker
max-page-sizeto the target page size removes unnecessary padding, which can make many binaries - and thus the images - a bit smaller.- OpenWrt builds are now more reproducible.
Core component updates
- Linux kernel: update from 6.12.87 to 6.12.94
- OpenSSL: update from 3.5.6 to 3.5.7 (multiple security fixes, see above)
- wireless-regdb: update from 2026.03.18 to 2026.05.30
- dnsmasq: update from 2.91 to 2.93
- ca-certificates: update from 20260223 to 20260601 (refreshed root CA bundle)
- util-linux: update from 2.41.3 to 2.41.5
Upgrading to 25.12.5
Upgrading from 24.10 to 25.12 should be transparent on most devices, as most configuration data has either remained the same or will be translated correctly on first boot by the package init scripts.
For upgrades within the OpenWrt 25.12 stable series, Attended Sysupgrade is also supported, which allows preserving the installed packages.
Sysupgrade from 23.05 or earlier to 25.12 is not officially supported.
Cron log level was fixed in busybox.
system.@system[0].cronloglevelshould be set to7for normal logging.7is the default now. If this option is not set, the default is used and no manual action is needed. https://github.com/openwrt/openwrt/commit/fc0c518a88e68d3deef04bec73b33d35186d6546Bananapi BPI-R4: Interface
eth1was renamed tosfp-lanorlan4, and interfaceeth2was renamed tosfp-wanto match the labels. You have to upgrade without saving the configuration. https://github.com/openwrt/openwrt/commit/cd8dcfef378044a1687adfa3738f01f9a9622bafTP-Link RE355 v1, RE450 v1 and RE450 v2: The partition layout and block size changed in this release to fix configuration loss on sysupgrade. Users upgrading from OpenWrt 25.12.0 or earlier must use
sysupgrade -Fto force the upgrade. The image must not exceed 5.875 MB (6016 KiB).Meraki MX60: Direct sysupgrade to 25.12.5 is not possible without manual preparation —
meraki_loadaddrmust be changed before upgrading, as the default value is insufficient to boot OpenWrt 25.12+. See the device wiki page for instructions.Sitecom WLR-7100 (X7 AC1200): This device was moved from the
ath79/generictarget to theath79/tinytarget in OpenWrt 25.12.4. Users upgrading from 25.12.3 or earlier need to flash the new image from theath79/tinytarget (usesysupgrade -F).Known issues
- Zyxel EX5601-T0: the WAN interface was renamed from
eth1towan— check and update your network configuration after upgrading.- Pixel 10 phones have problems connecting to WPA3-protected WiFi 6 APs. https://github.com/openwrt/openwrt/issues/21486
- 802.11r Fast Transition (FT) causes connection problems with some WiFi clients when WPA3 is used. https://github.com/openwrt/openwrt/issues/22200
- SQM CAKE MQ (
cake_mq): throughput may be unexpectedly low on some configurations after the scheduler fixes in this release. https://github.com/openwrt/openwrt/issues/22344
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