Code execution or service interruption via CPCA overflow
Published Jan 15, 2026 · Updated Jan 15, 2026
Buffer overflow in Canon printer firmware 06.02 and earlier allows remote attackers to execute code or interrupt service via CPCA list requests. CPCA list processing writes beyond a buffer when handling attacker-controlled list data; Canon has not disclosed the function or precise bounds error. The CPCA service must be reachable from the attacker's network segment; no authentication or user interaction is required, and impact ranges from an unresponsive printer to code execution.
Summary
What happened
Buffer overflow in Canon printer firmware 06.02 and earlier allows remote attackers to execute code or interrupt service via CPCA list requests. CPCA list processing writes beyond a buffer when handling attacker-controlled list data; Canon has not disclosed the function or precise bounds error. The CPCA service must be reachable from the attacker's network segment; no authentication or user interaction is required, and impact ranges from an unresponsive printer to code execution.
The record
- CVE
- CVE-2025-14234
- Published
- Jan 15, 2026
- Updated
- Jan 15, 2026
- Vendor
- Canon Inc.
- Product
- 1238Pr II
- Classifications
- CWE-787, T1190, T1499.004
- 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.
Weakness, pattern, technique
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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