What’s Vulnerable › Vulnerabilities

CVE-2022-0520: Use After Free in radareorg/radare2

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-08 · updated 2026-06-17
• Weakness: CWE-416

Description

Use After Free in NPM radare2.js prior to 5.6.2.

Affected products

• Fedoraproject Fedora: 35, 36
• radareorg/radare2: before 5.6.2 — fixed in 5.6.2

How to fix

Upgrade to a fixed version: radareorg/radare2 5.6.2. Check the vendor advisory for mitigations.

References

• https://github.com/radareorg/radare2/commit/8525ad0b9fd596f4b251bb3d7b114e6dc7ce1ee8
• https://huntr.dev/bounties/ce13c371-e5ef-4993-97f3-3d33dcd943a6
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZTIMAS53YT66FUS4QHQAFRJOBMUFG6D/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6YBRQ3UCFWJVSOYIKPVUDASZ544TFND/
• https://github.com/radareorg/radare2/commit/8525ad0b9fd596f4b251bb3d7b114e6dc7ce1ee8
• https://huntr.dev/bounties/ce13c371-e5ef-4993-97f3-3d33dcd943a6
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZTIMAS53YT66FUS4QHQAFRJOBMUFG6D/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6YBRQ3UCFWJVSOYIKPVUDASZ544TFND/

Get alerted when CVE-2022-0520 or the next vulnerability affects your stack