CVE-2021-3326: Debian Linux

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Affected products

• Debian Debian Linux: version 10.0 only
• Fujitsu m10-1 Firmware: before xcp2410 (fixed in xcp2410); before xcp3110 (fixed in xcp3110)
• Fujitsu m10-4 Firmware: before xcp2410 (fixed in xcp2410); before xcp3110 (fixed in xcp3110)
• Fujitsu m10-4s Firmware: before xcp2410 (fixed in xcp2410); before xcp3110 (fixed in xcp3110)
• Fujitsu m12-1 Firmware: before xcp2410 (fixed in xcp2410); before xcp3110 (fixed in xcp3110)
• Fujitsu m12-2 Firmware: before xcp2410 (fixed in xcp2410); before xcp3110 (fixed in xcp3110)
• Fujitsu m12-2s Firmware: before xcp2410 (fixed in xcp2410); before xcp3110 (fixed in xcp3110)
• GNU Glibc: up to and including 2.32.0
• Netapp E-Series Santricity OS Controller: from 11.0, up to and including 11.60.3
• Netapp Ontap Select Deploy Administration Utility: affected versions not specified
• Oracle Communications Cloud Native Core Security Edge Protection Proxy: version 1.5.0 only

Published 2021-01-27. Last modified 2026-06-17.