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#5 BleepingComputer general October 14, 2026 at 17:29 UTC

Cisco patches new Secure Email Gateway zero-day exploited in attacks

By Sergiu Gatlan

AI Summary

Cisco patched an actively exploited zero-day in its Secure Email Gateway (SEG) that allows remote, unauthenticated attackers to write arbitrary files to the appliance's OS and execute commands as root — achieved simply by sending an email with a crafted attachment through the gateway. No CVE number was specified in the summary, but Cisco confirmed active exploitation in its advisory. Organizations running Cisco SEG should apply the October 14 patch immediately.

Read full article → https://www.bleepingcomputer.com/news/security/cis…

Relevance score: 88.0/100

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