CVE-2022-28070Network attack vector

Analyzer crash via unchecked null symbol type

Published Aug 22, 2023 · Updated Oct 3, 2024

A null-pointer dereference in radare2 5.4.0 and 5.4.2 allows attackers to crash the analyzer by supplying a corrupted ELF file. During ELF analysis, __core_anal_fcn passes sym->type to strcmp without first checking whether that symbol-type pointer is null. The flaw is reached when radare2 analyzes a corrupted ELF; exploitation interrupts that analysis process without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A null-pointer dereference in radare2 5.4.0 and 5.4.2 allows attackers to crash the analyzer by supplying a corrupted ELF file. During ELF analysis, __core_anal_fcn passes sym->type to strcmp without first checking whether that symbol-type pointer is null. The flaw is reached when radare2 analyzes a corrupted ELF; exploitation interrupts that analysis process without reported data disclosure or modification.

The record

CVE
CVE-2022-28070
Published
Aug 22, 2023
Updated
Oct 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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