What’s Vulnerable › Vulnerabilities

CVE-2020-27793

• Severity: high (CVSS 7.5 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: 2022-08-19 · updated 2026-06-17
• Weakness: CWE-193

Description

An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.

Affected products

• radareorg/radare2: before 4.4.0 — fixed in 4.4.0

How to fix

Upgrade to a fixed version: radareorg/radare2 4.4.0. Check the vendor advisory for mitigations.

References

• https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc
• https://github.com/radareorg/radare2/issues/16304
• https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc
• https://github.com/radareorg/radare2/issues/16304

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