Heap-Based Buffer Overflow in radareorg Radare2 Up to Version 6.1.6
CVE-2026-14759

4.8MEDIUM

Key Information:

Vendor

Radareorg

Status
Radare2
Vendor
CVE Published:
5 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-14759?

A significant security flaw has been identified in the Radare2 tool up to version 6.1.6, specifically within the RBinJava Line Number Table Parser. The vulnerability resides in the function responsible for calculating the size of inner classes attributes, which can result in a heap-based buffer overflow upon manipulation. The attack requires local access, and exploits for this vulnerability have been publicly disclosed. Users are strongly advised to update to the patched version to mitigate potential threats.

Affected Version(s)

radare2 6.1.0

radare2 6.1.1

radare2 6.1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-14759 - Proof of Concept

References

https://vuldb.com/vuln/376348
vdb-entrytechnical-description
https://vuldb.com/vuln/376348/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-14759
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kery Qi (VulDB User)
.