{"id":"CVE-2026-121956","published":"2026-11-04T16:17:48.250","lastModified":"2026-11-04T19:17:36.447","description":"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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-415"],"vendors":[],"products":[],"references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr","tags":[]},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-double-free-in-winpr-kerberos-retrievesometgt","tags":[]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr","tags":[]}],"exploitRefs":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr","tags":[]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr","tags":[]}],"hasPoc":true,"ai":null}