What’s Vulnerable › Vulnerabilities

CVE-2018-20461

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-25 · updated 2026-06-17
• Weakness: CWE-125

Description

In radare2 prior to 3.1.1, core_anal_bytes in libr/core/cmd_anal.c allows attackers to cause a denial-of-service (application crash caused by out-of-bounds read) by crafting a binary file.

Affected products

• radareorg/radare2: before 3.1.1 — fixed in 3.1.1

How to fix

Upgrade to a fixed version: radareorg/radare2 3.1.1. Check the vendor advisory for mitigations.

References

• https://github.com/radare/radare2/commit/a1bc65c3db593530775823d6d7506a457ed95267
• https://github.com/radare/radare2/issues/12375
• https://github.com/radare/radare2/commit/a1bc65c3db593530775823d6d7506a457ed95267
• https://github.com/radare/radare2/issues/12375

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