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Critical Canon MailSuite Flaw Allows Remote Code Execution Attacks

ID: 974bb49e-a6b6-5111-91eb-e3613d176262

STIX ID: report--974bb49e-a6b6-5111-91eb-e3613d176262

Feed Name: Cyber Press

Threat Score
75/100

Date Published: 2026-05-14

Date Updated: 2026-05-14

Author: AnuPriya

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Critical remote-code-execution vulnerability (stack-based buffer overflow) in Canon GUARDIANWALL MailSuite's pop3wallpasswd command affects versions 1.4.00–2.4.26 (JVN#35567473); attackers can trigger the flaw via crafted web requests to gain arbitrary code execution, and Canon has released patches while recommending disabling the administration interface as a temporary mitigation.

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