CVE-2024-8422

Code execution via unchecked ZM2 object use

Published Oct 8, 2024 · Updated Oct 8, 2024

Use-after-free in Zelio Soft 2 before 5.4.2.2 allows remote attackers to execute code by inducing a user to open a malicious ZM2 file. The ZM2 parser performs operations on an object without first validating that the object still exists. Exploitation requires user interaction and runs attacker-controlled code in the application process, with possible crash, data disclosure, or data modification.

CVSS severity7.8
High
EPSS probability0.21%
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 Zelio Soft 2 before 5.4.2.2 allows remote attackers to execute code by inducing a user to open a malicious ZM2 file. The ZM2 parser performs operations on an object without first validating that the object still exists. Exploitation requires user interaction and runs attacker-controlled code in the application process, with possible crash, data disclosure, or data modification.

The record

CVE
CVE-2024-8422
Published
Oct 8, 2024
Updated
Oct 8, 2024
Vendor
Distributed Data Systems
Product
Zelio Soft 2
Classifications
CWE-416, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2024Record 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=0 <5.4.2.2
  2. Affected versionversion=Versions prior to 5.4.2.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Distributed Data Systems · Zelio Soft 2version=0 <5.4.2.2; version=Versions prior to 5.4.2.2

Published CVSS scores

7.8Schneider Electric SECVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS: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
T1203Exploitation for Client Execution
T1204.002Malicious 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