CVE-2022-4843

NULL Pointer Dereference in radareorg/radare2

4.4 Medium

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

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: Low
Availability: Low

Exploit likelihood

0.74%Down 0.1 points since Dec 30, 2022

What each source reports

CVE List Score used 4.4

NULL Pointer Dereference in radareorg/radare2

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

Record: CVE-2022-4843
CVSS 3.0: 4.4 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Weakness: CWE-476
Updated: 2026-11-02

EUVDEUVD-2022-52117 4.4

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

Record: EUVD-2022-52117
CVSS 3.0: 4.4 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-2rh3-vh92-3gch 7.5

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

Record: GHSA-2rh3-vh92-3gch
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

NVD 7.5

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

Record: CVE-2022-4843
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0: 4.4 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Weakness: CWE-476
Updated: 2026-11-02

OSV 4.4

NULL Pointer Dereference in radareorg/radare2

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

Record: CVE-2022-4843
CVSS 3.0: 4.4 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Weakness: CWE-476
Updated: 2026-11-02

OSVUBUNTU-CVE-2022-4843 7.5

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

Record: UBUNTU-CVE-2022-4843
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0: 4.4 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`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
`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 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2022-4843 is a medium vulnerability (CVSS 4.4) in Radare Radare2, published December 29, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 54th percentile. No source names a fixed version.

References

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