CVE-2026-121956

EUVD-2026-116956
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
freerdpfreerdp
𝑥
< 3.32.2
CNA
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
vulnerable
freerdp3
forky
3.32.2+dfsg-1
fixed
sid
3.33.0+dfsg-1
fixed
trixie
vulnerable
Common Weakness Enumeration
References
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr
https://www.vulncheck.com/advisories/freerdp-before-3.32.2-double-free-in-winpr-kerberos-retrievesometgt
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr