{"id":"UBUNTU-CVE-2026-121956","details":"FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into a target principal that has an empty realm without taking ownership of it. Unauthenticated remote clients can send a crafted NLA/CredSSP u2u TGT request whose server-name component contains '@' to corrupt the heap and crash the server process.","modified":"2026-11-06T01:00:41.635636101Z","published":"2026-11-04T00:00:00Z","upstream":["CVE-2026-121956"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-121956"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-121956"}],"affected":[{"package":{"name":"freerdp","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/freerdp?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1","1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2","1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3","1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"freerdp-x11"},{"binary_name":"libfreerdp-cache1.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libfreerdp-client1.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libfreerdp-codec1.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libfreerdp-common1.1.0","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libfreerdp-core1.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libfreerdp-crypto1.1"},{"binary_name":"libfreerdp-gdi1.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libfreerdp-locale1.1"},{"binary_name":"libfreerdp-plugins-standard","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libfreerdp-primitives1.1"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libfreerdp-rail1.1"},{"binary_name":"libfreerdp-utils1.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-asn1-0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-bcrypt0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-credentials0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-credui0.1"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-crt0.1"},{"binary_name":"libwinpr-crypto0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-dsparse0.1"},{"binary_name":"libwinpr-environment0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-error0.1"},{"binary_name":"libwinpr-file0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-handle0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-heap0.1"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-input0.1"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-interlocked0.1"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-io0.1"},{"binary_name":"libwinpr-library0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-path0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-pipe0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-pool0.1"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-registry0.1"},{"binary_name":"libwinpr-rpc0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-sspi0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-sspicli0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-synch0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-sysinfo0.1"},{"binary_name":"libwinpr-thread0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4","binary_name":"libwinpr-timezone0.1"},{"binary_name":"libwinpr-utils0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-winhttp0.1","binary_version":"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"},{"binary_name":"libwinpr-winsock0.1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