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#2 BleepingComputer general September 15, 2026 at 07:31 UTC

Cisco patches Secure Email Gateway zero-day exploited in attacks

By Sergiu Gatlan

AI Summary

Cisco confirmed active exploitation of a critical zero-day in its Secure Email Gateway before the vulnerability was disclosed or patched, though the company has not detailed the attack scope or nature of the campaigns. Defenders should apply the patch immediately and audit email gateway logs for indicators of compromise, as unauthenticated attackers can leverage the flaw for root-level access.

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

Relevance score: 91.0/100

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