CVE-2020-27794

criticalpriority · track · 36EPSS 0.011 · 66 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.11% (66th) EPSS

CVSS 9.1 · critical

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.2

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-415USprimary

affected products (2)

Products and version ranges known to be affected.

n/a radare2≤ Fixed in v4.4.0.enisa_euvdEU
radare radare2< 4.4.0nvdUScpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2022-08-19modified 2026-06-17

related (1,208)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-33824US	—OT critical	77.1% (100th)	KEV	2026-04-14
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
CVE-2025-62215US	—OT critical	4.46% (91st)	KEV	2025-11-11
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2021-22600US	high7.0OT critical	6.59% (94th)	KEV	2022-01-26
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgr…
CVE-2021-26411US	medium5.1OT critical	81.7% (100th)	KEV	2021-03-11
Internet Explorer Memory Corruption Vulnerability
CVE-2020-9859US	high7.8OT critical	0.83% (57th)	KEV	2020-06-05
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6…

+1203 more

references (7)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan