CVE 2011-0871
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 6 Update 25 and earlier, 5.0 Update 29 and earlier, and 1.4.2_31 and earlier allows remote untrusted Java Web Start applications and untrusted Java applets to affect confidentiality, integrity, and availability via unknown vectors related to Swing.
See the
CVE page on Mitre.org
for more details.