High (8.1). EPSS 0.7% chance of exploitation in the next 30 days. Fixed in pymongo 4.6.3.
An out-of-bounds read in the 'bson' module of PyMongo 4.6.2 or earlier allows deserialization of malformed BSON provided by a Server to raise an exception which may contain arbitrary application memory.
Severity
CVSS 3.1
8.1 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS
0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)