What is CVE-2022-4843?

CVE-2022-4843 is a high-severity vulnerability in Radare Radare2, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-12-29.

How severe is CVE-2022-4843?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Radare Radare2

CVE-2022-4843

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

Published 2022-12-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: -0.000

Affected products

Radare Radare2
Radareorg Radareorg/radare2 — versions unspecified

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

huntr.dev/bounties/075b2760-66a0-4d38-b3b5-e9934956ab7f (Exploit, Patch, Third Party Advisory)
github.com/radareorg/radare2/commit/842f809d4ec6a12af2906f948657281c9ebc8a24 (Patch, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)

Frequently asked questions

What is CVE-2022-4843?: CVE-2022-4843 is a high-severity vulnerability in Radare Radare2, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-12-29.
How severe is CVE-2022-4843?: High severity. CVSS v3 base score is 7.5 out of 10.