Unauthenticated code execution via WSD buffer overflow
Published Jan 15, 2026 · Updated Jan 15, 2026
Out-of-bounds write in WSD print-job processing in Canon printers through firmware 06.02 allows remote attackers to execute code. WSD print-job processing writes data beyond an allocated buffer, but Canon has not disclosed the affected routine or exact missing bounds check. Network-segment access is sufficient and no authentication or user interaction is required; exploitation can also leave the device unresponsive.
Summary
What happened
Out-of-bounds write in WSD print-job processing in Canon printers through firmware 06.02 allows remote attackers to execute code. WSD print-job processing writes data beyond an allocated buffer, but Canon has not disclosed the affected routine or exact missing bounds check. Network-segment access is sufficient and no authentication or user interaction is required; exploitation can also leave the device unresponsive.
The record
- CVE
- CVE-2025-14231
- Published
- Jan 15, 2026
- Updated
- Jan 15, 2026
- Vendor
- Canon Inc.
- Product
- 1238Pr II
- Classifications
- CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 15, 2026CVE publishedPublication date reported by the CVE source.
- Jan 15, 2026Record 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.
- Affected versionversion=06.02 and earlier
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
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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