CVE-2021-3826: Fedoraproject Fedora

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

Affected products

• Fedoraproject Fedora: version 35 only; version 36 only; version 37 only
• GNU Gcc: version 11.2 only

Published 2022-09-01. Last modified 2026-06-17.