CVE-2020-27794

Severity: critical (CVSS 9.1 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-415

Description

A double free issue was discovered in radare2 in cmd_info.c:cmd_info(). Successful exploitation could lead to modification of unexpected memory locations and potentially causing a crash.

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/cb8b683758edddae2d2f62e8e63a738c39f92683
https://github.com/radareorg/radare2/issues/16303
https://github.com/radareorg/radare2/commit/cb8b683758edddae2d2f62e8e63a738c39f92683
https://github.com/radareorg/radare2/issues/16303

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