- BEFW11S4, Wireless Access Point Router with 4-Port Switch - Version 2
- BEFSR11, EtherFast Cable/DSL Router
- BEFSR41, EtherFast Cable/DSL Router with 4-Port Switch
- BEFSRU31, EtherFast Cable/DSL Router with USB and 3-Port Switch
Linksys released firmware update (1.43.3) which can be downloaded from http://www.linksys.com/download/.
In a related post to the BugTraq mailing list, Seth Bromberger noted that Linksys confirmed that the same problem also affects BEFVP41, BEFSX41, BEFSR81, BEFN2PS4 and HPRO200. Vulnerable versions for this additional products include releases later than 1.42.7 (2.42.7 for the BEFSR81 unit).
Linksys support added: "Until the updated firmware is released, we recommend that users downgrade the firmware to an earlier release, or minimize the risk of an attack by disabling remote management of the device."