CVE-2021-27219: Broadcom Brocade Fabric Operating System Firmware

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption.

Affected products

• Broadcom Brocade Fabric Operating System Firmware: affected versions not specified
• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: version 33 only; version 34 only
• Gnome Glib: before 2.66.6 (fixed in 2.66.6); from 2.67.0, before 2.67.3 (fixed in 2.67.3)
• Netapp Active Iq Unified Manager: affected versions not specified
• Netapp Cloud Backup: affected versions not specified
• Netapp E-Series Performance Analyzer: affected versions not specified

Published 2021-02-15. Last modified 2026-06-17.