What is CVE-2020-27794?

CVE-2020-27794 is a critical-severity vulnerability in Radare Radare2, classified under Double Free. CVSS score: 9.1/10. Published 2022-08-19.

How severe is CVE-2020-27794?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2020-27794 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Double Free in Radare Radare2

CVE-2020-27794

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.

Vulnerability class: Double Free

EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Radare Radare2
N/a Radare2 — versions Fixed in v4.4.0.

Weakness classification (CWE)

CWE-415 — Double Free

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-27794

References

secalert@redhat.com (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-27794?: CVE-2020-27794 is a critical-severity vulnerability in Radare Radare2, classified under Double Free. CVSS score: 9.1/10. Published 2022-08-19.
How severe is CVE-2020-27794?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2020-27794 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.