CVE-2022-37374

Code execution via PNG parser use-after-free

Published Mar 29, 2023 · Updated Feb 18, 2025

Use-after-free in PNG parsing in Tracker Software Products PDF-XChange Editor 9.3.361.0 allows remote attackers to execute code. The PNG parser performs operations on an object without first verifying that the object still exists, leaving freed memory in use. Exploitation requires the target to visit a malicious page or open a malicious file, after which code runs in the current process.

CVSS severity7.8
High
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in PNG parsing in Tracker Software Products PDF-XChange Editor 9.3.361.0 allows remote attackers to execute code. The PNG parser performs operations on an object without first verifying that the object still exists, leaving freed memory in use. Exploitation requires the target to visit a malicious page or open a malicious file, after which code runs in the current process.

The record

CVE
CVE-2022-37374
Published
Mar 29, 2023
Updated
Feb 18, 2025
Vendor
Tracker Software Products
Product
PDF-XChange Editor
Classifications
CWE-416, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=9.3.361.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tracker Software Products · PDF-XChange Editorversion=9.3.361.0

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST National Vulnerability DatabaseCVSS: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

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Your stack

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