High (7.2) in SimpleHelp SimpleHelp. In CISA KEV since 2026-04-24, with known ransomware use. EPSS 64% chance of exploitation in the next 30 days.
SimpleHelp remote support software v5.5.7 and before allows admin users to upload arbitrary files anywhere on the file system by uploading a crafted zip file (i.e. zip slip). This can be exploited to execute arbitrary code on the host in the context of the SimpleHelp server user.
Severity
CVSS 3.1
7.2 high
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
64% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
CISA KEV
listed 2026-04-24, due 2026-05-08, known ransomware use