Exim maintainers have released version 4.100.1 to address four security vulnerabilities affecting the widely used mail transfer agent. This update resolves issues that could potentially enable SMTP smuggling and heap-memory corruption under certain configurations. The release, announced on September 18, fixes the following vulnerabilities: GCVE-25-2026-09-50-1, GCVE-25-2026-09-51-1, GCVE-25-2026-09-55-1, and GCVE-25-2026-09-56-1. Administrators using vulnerable installations of Exim […] The post Exim Mail Server Hit by 4 Security Flaws Enabling SMTP Smuggling and Heap Corruption appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform.
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