CVE-2025-11979: MongoDB

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An authorized user may crash the MongoDB server by causing buffer over-read. This can be done by issuing a DDL operation while queries are being issued, under some conditions. This issue affects MongoDB Server v7.0 versions prior to 7.0.25, MongoDB Server v8.0 versions prior to 8.0.15, and MongoDB Server version 8.2.0.

Affected products

• MongoDB MongoDB: from 7.0.0, before 7.0.25 (fixed in 7.0.25); from 8.0.0, before 8.0.15 (fixed in 8.0.15)

Published 2025-10-20. Last modified 2026-10-08.