CRITICAL✓ PATCH🇵🇱 Wersja polska

CVE-2025-14236

CVSS 9.3v4.0pub. 2026-01-16upd. 2026-01-26

Buffer overflow in Address Book attribute tag processing on Small Office Multifunction Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code. *: Satera LBP670C Series/Satera MF750C Series firmware v06.02 and earlier sold in Japan.Color imageCLASS LBP630C/Color imageCLASS MF650C Series/imageCLASS LBP230 Series/imageCLASS X LBP1238 II/imageCLASS MF450 Series/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II firmware v06.02 and earlier sold in US.i-SENSYS LBP630C Series/i-SENSYS MF650C Series/i-SENSYS LBP230 Series/1238P II/1238Pr II/i-SENSYS MF450 Series/i-SENSYS MF550 Series/1238i II/1238iF II/imageRUNNER 1643i II/imageRUNNER 1643iF II firmware v06.02 and earlier sold in Europe.

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🤖 AI Analysis

How it works

The vulnerability (CWE-787 — out-of-bounds buffer write) lies in the Address Book attribute tag processing mechanism. An attacker present in the same network segment can send specially crafted data that causes a buffer overflow in the device's memory. As a result, it is possible to overwrite memory areas beyond the intended buffer, leading to device instability or arbitrary code execution (RCE). The attack requires no authentication or user interaction.

Impact

An attacker can execute arbitrary code on the device (RCE) or cause its complete unavailability (no response), leading to loss of confidentiality, integrity, and system availability.

Mitigation & patch

Device firmware should be updated to a version newer than v06.02, applying patches available from the manufacturer according to references: https://psirt.canon/advisory-information/cp2026-001/ (globally), https://canon.jp/support/support-info/260115vulnerability-response (Japan), https://www.usa.canon.com/support/canon-product-advisories/ (USA), https://www.canon-europe.com/support/product-security/ (Europe). Until patches are deployed, it is recommended to isolate devices in a dedicated network segment and restrict network access to printers only for authorized hosts.

Who is affected

Canon devices with firmware v06.02 and earlier: Satera LBP670C Series / Satera MF750C Series (Japan); Color imageCLASS LBP630C / Color imageCLASS MF650C Series / imageCLASS LBP230 Series / imageCLASS X LBP1238 II / imageCLASS MF450 Series / imageCLASS X MF1238 II / imageCLASS X MF1643i II / imageCLASS X MF1643iF II (USA); i-SENSYS LBP630C Series / i-SENSYS MF650C Series / i-SENSYS LBP230 Series / 1238P II / 1238Pr II / i-SENSYS MF450 Series / i-SENSYS MF550 Series / 1238i II / 1238iF II / imageRUNNER 1643i II / imageRUNNER 1643iF II (Europe). Also affects: Canon MF455DW, MF453DW, MF452DW.

Analysis generated by Claude AI (Anthropic) based on NVD data. Always verify with vendor.

CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X