CVE-2025-0903

Code execution via unchecked RTF heap copy

Published Feb 11, 2025 · Updated Feb 12, 2025

Heap-based buffer overflow in PDF-XChange Editor 10.4.0.388 allows remote attackers to execute code through a crafted RTF file. The RTF parser copies user-supplied data into a fixed-length heap buffer without first validating that the supplied length fits. Exploitation requires the target to visit malicious content or open the file, and resulting code runs in the current process context.

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

Heap-based buffer overflow in PDF-XChange Editor 10.4.0.388 allows remote attackers to execute code through a crafted RTF file. The RTF parser copies user-supplied data into a fixed-length heap buffer without first validating that the supplied length fits. Exploitation requires the target to visit malicious content or open the file, and resulting code runs in the current process context.

The record

CVE
CVE-2025-0903
Published
Feb 11, 2025
Updated
Feb 12, 2025
Vendor
Tracker Software Products
Product
PDF-XChange Editor
Classifications
CWE-787, CWE-122, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 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=10.4.0.388

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Tracker Software Products · PDF-XChange Editorversion=10.4.0.388

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
8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution
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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