libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition.
Exploitability
AV:LAC:HPR:NUI:NScope
S:UImpact
C:NI:NA:L2.9/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LMemory Safety