轉發 台灣電腦網路危機處理暨協調中心 資安訊息警訊 TWCERTCC-200-202609-00000017

[內容說明]
Cisco 針對旗下Secure Email Gateway發布重大資安漏洞公告(CVE-2026-76461，CVSS：9.8)。此漏洞允許未經身分驗證的遠端攻擊者，透過寄送內含惡意SQL指令的特製電子郵件，以root權限於底層作業系統遠端執行任意程式碼 (RCE)。 備註：目前Cisco已觀察到有攻擊者利用此漏洞，建議儘速採取暫時緩解措施，以防止針對此漏洞可能的攻擊發生。

[影響平台]
Cisco AsyncOS for Cisco Secure Email Gateway 15.5(含)之前版本
Cisco AsyncOS for Cisco Secure Email Gateway 16.0 版本
Cisco AsyncOS for Cisco Secure Email Gateway 16.5版本

[建議措施]
請更新至以下版本： Cisco AsyncOS for Cisco Secure Email Gateway 15.5.5-014(含)之後版本、 Cisco AsyncOS for Cisco Secure Email Gateway 16.0.4-302(含)之後版本、 Cisco AsyncOS for Cisco Secure Email Gateway 16.5.0-780(含)之後版本

[參考資料]
1. https://www.twcert.org.tw/tw/cp-169-11206-b668b-1.html
Forwarded from Taiwan Computer Emergency Response Team / Coordination Center Security Information Alert TWCERTCC-200-202609-00000017

[Content Description]
Cisco has issued a critical security vulnerability advisory for its Secure Email Gateway (CVE-2026-76461, CVSS：9.8). This vulnerability allows an unauthenticated remote attacker to remotely execute arbitrary code (RCE) on the underlying operating system with root privileges by sending a specially crafted email containing malicious SQL commands. Note: Cisco has currently observed attackers exploiting this vulnerability. It is recommended to take temporary mitigation measures as soon as possible to prevent possible attacks targeting this vulnerability.

[Affected Platforms]
Cisco AsyncOS for Cisco Secure Email Gateway versions 15.5 (inclusive) and earlier
Cisco AsyncOS for Cisco Secure Email Gateway version 16.0
Cisco AsyncOS for Cisco Secure Email Gateway version 16.5

[Recommended Measures]
Please update to the following versions: Cisco AsyncOS for Cisco Secure Email Gateway 15.5.5-014 (inclusive) and later versions, Cisco AsyncOS for Cisco Secure Email Gateway 16.0.4-302 (inclusive) and later versions, Cisco AsyncOS for Cisco Secure Email Gateway 16.5.0-780 (inclusive) and later versions

[References]
1. https://www.twcert.org.tw/tw/cp-169-11206-b668b-1.html