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 hardening releases that address multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-76442 are related to issues with improper validation of specified quantity in input that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-1284.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00351.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-esa-dfCrfXkm cve-icon cve-icon
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification cve-icon
History

Tue, 15 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
References

Tue, 15 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description 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 hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76442 are related to issues with improper validation of specified quantity in input that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-1284.
Title Cisco Secure Email Gateway Security Hardening Release
Weaknesses CWE-1284
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-09-16T03:55:36.952Z

Reserved: 2026-08-19T12:02:03.635Z

Link: CVE-2026-76442

cve-icon Vulnrichment

Updated: 2026-09-15T17:03:58.176Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-14T17:17:50.810

Modified: 2026-09-16T04:18:41.067

Link: CVE-2026-76442

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T08:00:16Z

Weaknesses