Heap-based Buffer Overflow - Vulnerability

Threat entity extracted from intelligence sources

Frequency
5
occurrences
First Seen
December 12, 2025
Last Seen
June 18, 2026

Heap-based Buffer Overflow is a vulnerability tracked across 4 threat clusters and 5 intelligence report mentions on ThreatCluster. First observed December 12, 2025; most recent activity June 18, 2026.

Overview

Heap-based Buffer Overflow is a memory corruption vulnerability in which a program writes more data to a heap-allocated buffer than it can hold, potentially overwriting adjacent memory. Exploitation can crash the program or enable arbitrary code execution, making it a long-standing, high-severity risk in unmanaged languages like C/C++. MITRE’s 2025 ranking highlights it as one of the top dangerous software weaknesses, underscoring its ongoing significance for cybersecurity risk management.

Related Threat Clusters

Recent Intelligence Reports

  • SUSE ffmpeg Important Security Fix for Multiple Vulnerabilities 2026-2444 — Linuxsecurity · June 18, 2026
  • SUSE ffmpeg-4 Important Buffer Overflow Denial of Service Vuln 2026-2445 — Linuxsecurity · June 18, 2026
  • Fedora 42 fontforge Critical Remote Execution Fix FEDORA-2026 — Linuxsecurity · February 1, 2026
  • Microsoft Patch Tuesday January 2026: Actively Exploited Zero Day, 8 High — Thecyberexpress · January 13, 2026
  • MITRE shares 2025's top 25 most dangerous software weaknesses — Bleepingcomputer · December 12, 2025

CVSS v3.1 Breakdown