Cisco Secure Email at a glance
Show as table
| Month | Vulnerabilities | Critical |
|---|---|---|
| Nov 2026 | 0 | 0 |
| Oct 2026 | 1 | 1 |
| Sep 2026 | 7 | 4 |
| Aug 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| Apr 2026 | 0 | 0 |
| Mar 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Dec 2025 | 1 | 1 |
| Nov 2025 | 0 | 0 |
| Oct 2025 | 0 | 0 |
| Sep 2025 | 0 | 0 |
| Aug 2025 | 0 | 0 |
| Jul 2025 | 0 | 0 |
| Jun 2025 | 0 | 0 |
| May 2025 | 0 | 0 |
| Apr 2025 | 0 | 0 |
| Mar 2025 | 0 | 0 |
| Feb 2025 | 5 | 0 |
| Jan 2025 | 0 | 0 |
| Dec 2024 | 0 | 0 |
Latest advisories
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High max 6.5NCSC-2025-0042 3 CVEs
Kwetsbaarheden verholpen in Cisco AsyncOS Software
Cisco heeft kwetsbaarheden verholpen in Cisco AsyncOS Software (Specifiek voor Cisco Secure Web Appliance en Cisco Secure Email Gateway).
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Critical max 9.8NCSC-2024-0311 2 CVEs
Kwetsbaarheden verholpen in Cisco Secure Email Gateway
Er zijn twee kwetsbaarheden verholpen in Cisco Secure Email Gateway.
29 results · Feed
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Critical 9.8
Cisco Secure Email Gateway Arbitrary File Write Vulnerability
A vulnerability in the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system. This vulnerability is due to improper handling of email…
KEV Oct 14, 2026 -
High 7.5
Cisco Secure Email Gateway Security Hardening Release
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software ha…
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Critical 9.8
Cisco Secure Email Gateway SQL Injection Vulnerability
A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to i…
KEV Sep 14, 2026 -
Critical 9.8CVE-2026-76443 Public exploit
Cisco Secure Email Gateway Security Hardening Release
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software ha…
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Critical 9.8
Cisco Secure Email Gateway Security Hardening Release
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software ha…
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Critical 9.8
Cisco Secure Email Gateway Security Hardening Release
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software ha…
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Medium 5.9
Cisco Secure Email S/MIME Ciphertext Decryption Vulnerabilty
Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are…
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Medium 5.9
Cisco Secure Email S/MIME Ciphertext Decryption Vulnerabilty
Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are…
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Critical 10.0
Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability
A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root…
KEV Dec 17, 2025 -
Medium 5.8
Cisco ESA mail Bypass
A vulnerability in the email filtering mechanism of Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to bypass the configured rules and allow emails that should have been denied to flow through an affected device. This vulnera…
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Medium 4.3
Cisco Secure Email Gateway, Cisco Secure Email and Web Appliance and Cisco Secure Web Appliance SNMP Polling Information Disclosure Vulnerability
A vulnerability in Simple Network Management Protocol (SNMP) polling for Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, and Cisco Secure Web Appliance could allow an authenticated, remote attacker to obtain confidential information about the …
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Low 3.4
Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance Privilege Escalation Vulnerability
A vulnerability in the implementation of the remote access functionality of Cisco AsyncOS Software for Cisco Secure Email and Web Manager, Cisco Secure Email Gateway, and Cisco Secure Web Appliance could allow an authenticated, local attacker to elevate privi…
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Medium 6.5
Cisco Secure Email and Web Manager and Secure Web Appliance Command Injection Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Web Appliance could allow an authenticated, remote attacker to perform command injection attacks against an affected device. The at…
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Medium 4.8
Cisco Secure Email and Web Manager and Secure Email Gateway Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Email Gateway could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user …
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Medium 5.3
Cisco Email Security Appliance Denial Of Service Vulnerability
A vulnerability in the Transport Layer Security (TLS) protocol implementation of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause high CPU usage on an affected device, resulting…
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Medium 5.4
Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance Stored Cross-Site Scripting Vulnerabilities
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS)…
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Medium 6.5
A vulnerability in the web-based management interface of Cisco AsyncOS for Secure Email Gateway could allow an authenti…
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Critical 9.8
A vulnerability in the content scanning and message filtering features of Cisco Secure Email Gateway could allow an una…
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Medium 4.8
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email Gateway could al…
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Medium 6.1
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager …
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Medium 6.1
A vulnerability in the web-based management API of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an…
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Medium 5.8
A vulnerability in the zip decompression engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) coul…
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Medium 6.0CVE-2023-20075 Public exploit
Vulnerability in the CLI of Cisco Secure Email Gateway could allow an authenticated, remote attacker to execute arbitra…
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Medium 6.5CVE-2023-20009 Public exploit
A vulnerability in the Web UI and administrative CLI of the Cisco Secure Email Gateway (ESA) and Cisco Secure Email and…
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Medium 4.7
A vulnerability in Cisco Email Security Appliance (ESA) and Cisco Secure Email and Web Manager could allow an unauthent…
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Medium 6.5
A vulnerability in the web-based management interface of Cisco Email Security Appliance (ESA), Cisco Secure Email and W…
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High 7.5
A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remot…
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Medium 4.7
A vulnerability in the web-based management interface of Cisco Email Security Appliance, Cisco Secure Email and Web Man…
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Medium 5.4
A vulnerability in web-based management interface of the of Cisco Email Security Appliance and Cisco Secure Email and W…