TI-2022-04439 Aliases CVE-2022-4843 GHSA-2rh3-vh92-3gch

NULL Pointer Dereference in radareorg/radare2

HIGH 66CWE-476Published 2022-12-29 · Updated 2025-04-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

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

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00739 54th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed radareorg/radare2 (radareorg): 5.8.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
radareorg	radareorg/radare2	before 5.8.2	5.8.2	Patch available	CNA

radareorg/radare2 Vendorradareorg Affected before 5.8.2 Fixed in 5.8.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:radare:radare2::::::::	before 5.8.2	Vulnerable	radareorg

cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:* Versions before 5.8.2 Vulnerable ·radareorg

Remediation

Fix · CNA radareorg/radare2 (radareorg) Fixed in 5.8.2

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2022-4843
2026-10-03 Alias added: GHSA-2rh3-vh92-3gch

References

Exploit 1

https://huntr.dev/bounties/075b2760-66a0-4d38-b3b5-e9934956ab7f

Patch 1

https://github.com/radareorg/radare2/commit/842f809d4ec6a12af2906f948657281c9ebc8a24

Advisory 2

TI-2023-25089 An out-of-bounds read in radare2 v.5.8.9 and before exists in the print_insn32 function… CVSS 3.1CRITICAL 9.8
TI-2023-25088 An out-of-bounds read in radare2 v.5.8.9 and before exists in the print_insn32_fpu… CVSS 3.1CRITICAL 9.8
TI-2021-12172 Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. CVSS 3.1CRITICAL 10.0
TI-2026-07640 radare2 6.1.5 Use-After-Free via gdbr_pids_list() CVSS 4.0HIGH 8.7
TI-2026-07639 radare2 6.1.5 Use-After-Free via gdbr_threads_list() CVSS 4.0HIGH 8.7
TI-2023-03993 Heap-based Buffer Overflow in radareorg/radare2 CVSS 3.1CRITICAL 9.8

See all 178 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences