What’s Vulnerable › Vulnerabilities
CVE-2023-5686: Heap-based Buffer Overflow in radareorg/radare2
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-10-20 · updated 2026-06-17
- Weakness: CWE-122
Description
Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.
Affected products
- Fedoraproject Fedora: 37, 38
- radareorg/radare2: before 5.9.0 — fixed in 5.9.0
How to fix
Upgrade to a fixed version: radareorg/radare2 5.9.0. Check the vendor advisory for mitigations.
References
- https://github.com/radareorg/radare2/commit/1bdda93e348c160c84e30da3637acef26d0348de
- https://huntr.com/bounties/bbfe1f76-8fa1-4a8c-909d-65b16e970be0
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/64KUV6OGEVQ75QOV35PUVVDOJTKSJHYN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SOZ6XCADVAPAIHMVSV3FUAN742BHXF55/
- https://github.com/radareorg/radare2/commit/1bdda93e348c160c84e30da3637acef26d0348de
- https://huntr.com/bounties/bbfe1f76-8fa1-4a8c-909d-65b16e970be0
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/64KUV6OGEVQ75QOV35PUVVDOJTKSJHYN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SOZ6XCADVAPAIHMVSV3FUAN742BHXF55/
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