CVE-2026-105475

EUVD-2026-115630
Improper neutralization of a NUL byte in cPanel allows remote attackers to read any mail account's calendar and contact data.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.7 HIGH
NETWORK
LOW
NONE
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://support.cpanel.net/hc/en-us/articles/44356591132439-Security-CVE-2026-105475-Unauthenticated-Access-to-Calendar-and-Contact-Data-in-cPanel-WHM-October-20th-2026