# Cisco Secure Email Gateway vulnerabilities Source: https://junglewise.ai/threats/technologies/secure-email-gateway Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/secure-email-gateway.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 10 vulnerabilities in Cisco Secure Email Gateway: 0 in the last 7 days and 8 in the last 90 days, 7 of them critical and 3 exploited in the wild. The most recent, CVE-2026-76519, was published on 14 October 2026. 1 vulnerability in the last four weeks, down 83% on the four before (6). 1 critical against 5, 1 exploited in the wild against 1. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 8 - All time: 10 (7 critical, 3 exploited in the wild) ## About Cisco Secure Email Gateway Email gateway appliance for securing and managing email traffic. ## Latest Cisco Secure Email Gateway vulnerabilities - [CVE-2026-76519: Cisco Secure Email Gateway relative path traversal](https://junglewise.ai/threats/cve-2026-76519-cisco-secure-email-gateway-relative-path-traversal-vulnerability) (critical, exploited in the wild, published 14 Oct 2026) - [CVE-2026-76461: Cisco Secure Email Gateway SQL injection](https://junglewise.ai/threats/cve-2026-76461-cisco-secure-email-gateway-sql-injection) (critical, exploited in the wild, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76443: Cisco Secure Email Gateway improper neutralization vulnerability](https://junglewise.ai/threats/cve-2026-76443-cisco-secure-email-gateway-improper-neutralization-vulnerability) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76442: Cisco Secure Email Gateway improper input validation](https://junglewise.ai/threats/cve-2026-76442-cisco-secure-email-gateway-improper-input-validation) (high, CVSS 7.5, published 14 Sep 2026) - [CVE-2026-76441: Cisco Secure Email Gateway access control bypass](https://junglewise.ai/threats/cve-2026-76441-cisco-secure-email-gateway-access-control-bypass) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76440: Cisco Secure Email Gateway path traversal](https://junglewise.ai/threats/cve-2026-76440-cisco-secure-email-gateway-path-traversal) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-20353: Cisco Secure Email Gateway improper resource control](https://junglewise.ai/threats/cve-2026-20353-cisco-secure-email-gateway-improper-resource-control) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-20293: Cisco UCS UEFI Shell Secure Boot bypass](https://junglewise.ai/threats/cve-2026-20293-cisco-ucs-uefi-shell-secure-boot-bypass) (high, CVSS 7.1, published 8 Sep 2026) - [CVE-2026-8811: SEPPmail Secure Email Gateway path traversal in PDF module](https://junglewise.ai/threats/cve-2026-8811-seppmail-secure-email-gateway-path-traversal-in-pdf-module) (info, CVSS 7.1, published 18 Jun 2026) - [CVE-2025-20393: Cisco Secure Email Gateway command injection in Spam Quarantine](https://junglewise.ai/threats/cve-2025-20393-cisco-secure-email-gateway-command-injection-in-spam-quarantine) (critical, exploited in the wild, CVSS 10, published 17 Dec 2025) ## Most severe Cisco Secure Email Gateway vulnerabilities - [CVE-2025-20393: Cisco Secure Email Gateway command injection in Spam Quarantine](https://junglewise.ai/threats/cve-2025-20393-cisco-secure-email-gateway-command-injection-in-spam-quarantine) (critical, exploited in the wild, CVSS 10, published 17 Dec 2025) - [CVE-2026-76461: Cisco Secure Email Gateway SQL injection](https://junglewise.ai/threats/cve-2026-76461-cisco-secure-email-gateway-sql-injection) (critical, exploited in the wild, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76519: Cisco Secure Email Gateway relative path traversal](https://junglewise.ai/threats/cve-2026-76519-cisco-secure-email-gateway-relative-path-traversal-vulnerability) (critical, exploited in the wild, published 14 Oct 2026) - [CVE-2026-76440: Cisco Secure Email Gateway path traversal](https://junglewise.ai/threats/cve-2026-76440-cisco-secure-email-gateway-path-traversal) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76443: Cisco Secure Email Gateway improper neutralization vulnerability](https://junglewise.ai/threats/cve-2026-76443-cisco-secure-email-gateway-improper-neutralization-vulnerability) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76441: Cisco Secure Email Gateway access control bypass](https://junglewise.ai/threats/cve-2026-76441-cisco-secure-email-gateway-access-control-bypass) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-20353: Cisco Secure Email Gateway improper resource control](https://junglewise.ai/threats/cve-2026-20353-cisco-secure-email-gateway-improper-resource-control) (critical, CVSS 9.8, published 14 Sep 2026) - [CVE-2026-76442: Cisco Secure Email Gateway improper input validation](https://junglewise.ai/threats/cve-2026-76442-cisco-secure-email-gateway-improper-input-validation) (high, CVSS 7.5, published 14 Sep 2026) - [CVE-2026-20293: Cisco UCS UEFI Shell Secure Boot bypass](https://junglewise.ai/threats/cve-2026-20293-cisco-ucs-uefi-shell-secure-boot-bypass) (high, CVSS 7.1, published 8 Sep 2026) - [CVE-2026-8811: SEPPmail Secure Email Gateway path traversal in PDF module](https://junglewise.ai/threats/cve-2026-8811-seppmail-secure-email-gateway-path-traversal-in-pdf-module) (info, CVSS 7.1, published 18 Jun 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 83% on the four before (6). 1 critical against 5, 1 exploited in the wild against 1. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 1 | 0 | 0 | | 14 Sep 2026 | 6 | 5 | 1 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 1 | 1 | 1 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Cisco technologies - [Cisco IOS](https://junglewise.ai/threats/technologies/ios): 70 vulnerabilities - [Cisco Identity Services Engine](https://junglewise.ai/threats/technologies/identity-services-engine): 58 vulnerabilities - [Cisco IOS XE](https://junglewise.ai/threats/technologies/ios-xe): 57 vulnerabilities - [Cisco Firepower Threat Defense](https://junglewise.ai/threats/technologies/firepower-threat-defense): 33 vulnerabilities - [Cisco Firepower Threat Defense Software](https://junglewise.ai/threats/technologies/firepower-threat-defense-software): 33 vulnerabilities - [Cisco IOS XR](https://junglewise.ai/threats/technologies/ios-xr): 31 vulnerabilities - [Cisco IOS XE Software](https://junglewise.ai/threats/technologies/ios-xe-software): 28 vulnerabilities - [Cisco Adaptive Security Appliance Software](https://junglewise.ai/threats/technologies/secure-firewall-asa-software): 23 vulnerabilities - [Cisco Snort 3](https://junglewise.ai/threats/technologies/snort-3): 20 vulnerabilities - [Cisco Ios Software](https://junglewise.ai/threats/technologies/ios-software): 19 vulnerabilities - [Cisco ISE Passive Identity Connector](https://junglewise.ai/threats/technologies/ise-passive-identity-connector): 19 vulnerabilities - [Cisco Secure Firewall Management Center](https://junglewise.ai/threats/technologies/secure-firewall-management-center): 16 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Cisco Secure Email Gateway vulnerabilities", https://junglewise.ai/threats/technologies/secure-email-gateway, 13 November 2026.