Palm OS on Treo 650, 680, 700p, and 755p Smart phones allows remote attackers to cause a denial of service (device reset or hang) via a flood of large ICMP echo requests. NOTE: this is probably a different vulnerability than CVE-2003-0293.

PalmOS 3.5.2 and earlier uses weak encryption to store the user password, which allows attackers with physical access to the Palm device to decrypt the password and gain access to the device.

Debugging utility in the backdoor mode of Palm OS 3.5.2 and earlier allows attackers with physical access to a Palm device to bypass access restrictions and obtain passwords, even if the system lockout mechanism is enabled.

Handspring Visor 1.0 and 1.0.1 with the VisorPhone Springboard module installed allows remote attackers to cause a denial of service (PalmOS crash and VisorPhone database corruption) by sending a large or crafted SMS image.

Palm OS 3.5h and possibly other versions, as used in Handspring Visor and Xircom products, allows remote attackers to cause a denial of service via a TCP connect scan, e.g. from nmap.