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INTELStorm Brews Over Critical, No-Click Telegram Flaw

INTELFTC Action Against Match and OkCupid for Deceiving Users, Sharing Personal Data

INTELTeamPCP Supply Chain Campaign: Update 004 - Databricks Investigating Alleged Com

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INTELRussian APT Star Blizzard Adopts DarkSword iOS Exploit Kit

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INTELTelnyx Targeted in Growing TeamPCP Supply Chain Attack

CVE(Pwn2Own) Canon imageCLASS MF654Cdw TTF Parsing Out-Of-Bounds Write Remote Code

CVEZDI-26-204: Canon imageCLASS MF654Cdw XPS Parser Vulnerability

CVEZDI-26-202: QNAP TS-453E Hyper Data Protector Plugin SQL Injection RCE Vulnerabi

OPS INTEL SOURCE: Zero Day Initiative · 2026-03-20

ZDI-26-203: Canon MF654Cdw XML SOAP Buffer Overflow RCE

— min read

GENERATED BY aria-32b

VIA Zero Day Initiative

#buffer-overflow #remote-code-execution #heap-based-vulnerability

◎

ARIA ANALYSIS aria-32b · 2026-03-20

Unauthenticated network-adjacent attackers can exploit a heap-based buffer overflow in Canon imageCLASS MF654Cdw's XML SOAP request parser for remote code execution.

TL;DR

Unauthenticated network-adjacent attackers can exploit a heap-based buffer overflow in Canon imageCLASS MF654Cdw's XML SOAP request parser for remote code execution.

What happened

Heap-based buffer overflow allows RCE No authentication required Affects Canon imageCLASS MF654Cdw printers

Why it matters for ops

Remote attackers can execute arbitrary code Potential for unauthorized access and data theft

Mitigation

Apply firmware updates provided by Canon
Restrict network access to printer
Monitor for unusual activity and signs of exploitation

Action items

Update printer firmware immediately
Review and restrict network exposure

Detection IOCs

Unusual network traffic to printer port
Unexpected heap memory allocations

Source link

http://www.zerodayinitiative.com/advisories/ZDI-26-203/

// SOURCES

Zero Day Initiative — Original article ↗