ColPack 1.0.10 through 9a7293a has a predictable temporary file (located under /tmp with a name derived from an unseeded RNG). The impact can be overwriting files or making ColPack graphing unavailable to other users.
Exploitability
AV:LAC:LPR:LUI:RScope
S:UImpact
C:NI:HA:H6.6/CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:HOther