CVE-2022-34520

Radare2 v5.7.2 was discovered to contain a NULL pointer dereference via the function...

5.5 MediumFix available

Radare2 v5.7.2 was discovered to contain a NULL pointer dereference via the function r_bin_file_xtr_load_buffer at bin/bfile.c. This vulnerability allows attackers to cause a Denial of Service (DOS) via a crafted binary file.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.29%Down 0.6 points since Jul 23, 2022

What each source reports

NVD Score used 5.5

Record: CVE-2022-34520
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

CVE List No score

Record: CVE-2022-34520
Updated: 2026-11-02

EUVDEUVD-2022-37474 No score

Record: EUVD-2022-37474
Updated: 2026-11-03

GitHub AdvisoriesGHSA-q6c3-cw35-v2gh 5.5

Radare2 v5.7.2 was discovered to contain a NULL pointer dereference via the function...

Record: GHSA-q6c3-cw35-v2gh
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSVALPINE-CVE-2022-34520 5.5

Record: ALPINE-CVE-2022-34520
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-03

OSVUBUNTU-CVE-2022-34520 5.5

Record: UBUNTU-CVE-2022-34520
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSV No score

Record: CVE-2022-34520
Updated: 2026-11-02

Affected products

radare radare2

Affected packages

Affected packages
Package	Affected	Fixed
`radare2` Alpine:v3.18	before 5.7.2-r0	5.7.2-r0
`radare2` Alpine:v3.19	before 5.7.2-r0	5.7.2-r0
`radare2` Alpine:v3.20	before 5.7.2-r0	5.7.2-r0
`radare2` Alpine:v3.21	before 5.7.2-r0	5.7.2-r0
`radare2` Alpine:v3.22	before 5.7.2-r0	5.7.2-r0
`radare2` Alpine:v3.23	before 5.7.2-r0	5.7.2-r0
`radare2` Alpine:v3.24	before 5.7.2-r0	5.7.2-r0
`radare2` Ubuntu:16.04:LTS	All versions, plus listed versions 0.9.6-3.1ubuntu1	None known
`radare2` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 1.6.0+dfsg-12.0.0+dfsg-12.1.0+dfsg-12.3.0+dfsg-12.3.0+dfsg-22.3.0+dfsg-2ubuntu0.1~esm1	None known
`radare2` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 3.2.1+dfsg-5build14.0.0+dfsg-14.2.1+dfsg-14.2.1+dfsg-24.2.1+dfsg-2ubuntu0.1~esm1	None known

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Affected packages
Package	Affected	Fixed
`radare2` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 5.5.0+dfsg-1ubuntu15.5.0+dfsg-1.1ubuntu25.5.0+dfsg-1.1ubuntu35.5.0+dfsg-1.1ubuntu3+esm1	None known
`radare2` Ubuntu:25.10	All versions, plus listed versions 5.9.8+dfsg-25.9.8+dfsg-2ubuntu0.25.10.15.9.8+dfsg-2ubuntu0.25.10.2	None known
`radare2` Ubuntu:26.10	All versions, plus listed versions 6.0.7+ds-16.1.6+ds-26.1.6+ds-36.1.8+ds-1	None known
`radare2` Ubuntu:26.04:LTS	All versions, plus listed versions 5.9.8+dfsg-26.0.4+dfsg-16.0.7+ds-1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	affected, aliases, facts, references	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-34520 is a medium vulnerability (CVSS 5.5) in Radare Radare2, published July 22, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. Fixed in radare2 5.7.2-r0.