CVE-2022-2979

Remote code execution via CXP object use-after-free

Published Sep 12, 2022 · Updated Apr 16, 2025

Use-after-free in OMRON CX-Programmer before 9.78 allows remote attackers to execute arbitrary code by opening a crafted CXP file. The CXP parser operates on an object without validating that the object still exists, leaving a dangling memory reference that is reused during file processing. Exploitation requires a user to open the malicious file or visit a page that causes it to open, and code runs with the current process privileges.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in OMRON CX-Programmer before 9.78 allows remote attackers to execute arbitrary code by opening a crafted CXP file. The CXP parser operates on an object without validating that the object still exists, leaving a dangling memory reference that is reused during file processing. Exploitation requires a user to open the malicious file or visit a page that causes it to open, and code runs with the current process privileges.

The record

CVE
CVE-2022-2979
Published
Sep 12, 2022
Updated
Apr 16, 2025
Vendor
OMRON Corporation
Product
CX-Programmer
Classifications
CWE-416, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All <v9.78

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OMRON Corporation · CX-Programmerversion=All <v9.78

Published CVSS scores

7.8ICS-CERTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-416Use After Free
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo