<![CDATA[🔴 Critical: Cisco Warns of Active Attacks Exploiting New Critical Secure Email Gateway Vulnerability]]>Cisco has issued an advisory warning that a critical vulnerability in Cisco Secure Email Gateway is being actively exploited in the wild. According to the advisory published on Wednesday, the flaw allows an attacker with no authentication to write files to the appliance's underlying operating system.

The attack vector involves sending an email with a crafted attachment through the gateway. If the exploitation succeeds, the attacker could then execute commands with root privileges on the affected appliance. Secure Email Gateway is used by organizations to filter inbound email for spam and malware, which makes this a high-value target for attackers seeking a foothold in enterprise networks.

At this time, no specific CVE ID has been assigned or disclosed in the available information. Administrators running Cisco Secure Email Gateway should monitor Cisco's advisory page for updates and apply any available patches or mitigations as soon as they are released.

Given that exploitation requires only a crafted email attachment and no valid credentials, the barrier to entry for attackers is low. Organizations should prioritize reviewing their exposure and ensure their gateway appliances are not internet-facing beyond what is strictly necessary.

Source: The Hacker News

Is your organization running Cisco Secure Email Gateway, and if so, what steps are you taking to mitigate exposure while a patch is pending?

]]>https://xploitlk.com/topic/692/critical-cisco-warns-of-active-attacks-exploiting-new-critical-secure-email-gateway-vulnerabilityRSS for NodeTue, 27 Oct 2026 08:18:34 GMTThu, 15 Oct 2026 06:30:21 GMT60