CVE-2026-76442

Summary

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.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco Secure Email14.0.0-698affected
CiscoCisco Secure Email13.5.1-277affected
CiscoCisco Secure Email13.0.0-392affected
CiscoCisco Secure Email14.2.0-620affected
CiscoCisco Secure Email13.0.5-007affected
CiscoCisco Secure Email13.5.4-038affected
CiscoCisco Secure Email14.2.1-020affected
CiscoCisco Secure Email14.3.0-032affected
CiscoCisco Secure Email15.0.0-104affected
CiscoCisco Secure Email15.0.1-030affected
CiscoCisco Secure Email15.5.0-048affected
CiscoCisco Secure Email15.5.1-055affected
CiscoCisco Secure Email15.5.2-018affected
CiscoCisco Secure Email16.0.0-050affected
CiscoCisco Secure Email15.0.3-002affected
CiscoCisco Secure Email16.0.0-054affected
CiscoCisco Secure Email15.5.3-022affected
CiscoCisco Secure Email16.0.1-017affected
CiscoCisco Secure Email15.5.4-012affected
CiscoCisco Secure Email16.0.4-016affected
CiscoCisco Secure Email15.0.5-016affected
CiscoCisco Secure Email16.0.2-112affected
CiscoCisco Secure Email16.0.3-044affected
CiscoCisco Secure Email16.5.0-780affected
CiscoCisco Secure Email and Web Manager13.6.2-023affected
CiscoCisco Secure Email and Web Manager13.6.2-078affected
CiscoCisco Secure Email and Web Manager13.0.0-249affected
CiscoCisco Secure Email and Web Manager13.0.0-277affected
CiscoCisco Secure Email and Web Manager13.8.1-052affected
CiscoCisco Secure Email and Web Manager13.8.1-068affected
CiscoCisco Secure Email and Web Manager13.8.1-074affected
CiscoCisco Secure Email and Web Manager14.0.0-404affected
CiscoCisco Secure Email and Web Manager12.8.1-002affected
CiscoCisco Secure Email and Web Manager14.1.0-227affected
CiscoCisco Secure Email and Web Manager13.6.1-201affected
CiscoCisco Secure Email and Web Manager14.2.0-203affected
CiscoCisco Secure Email and Web Manager14.2.0-212affected
CiscoCisco Secure Email and Web Manager12.8.1-021affected
CiscoCisco Secure Email and Web Manager13.8.1-108affected
CiscoCisco Secure Email and Web Manager14.2.0-224affected
CiscoCisco Secure Email and Web Manager14.3.0-120affected
CiscoCisco Secure Email and Web Manager15.0.0-334affected
CiscoCisco Secure Email and Web Manager15.5.1-024affected
CiscoCisco Secure Email and Web Manager15.5.1-029affected
CiscoCisco Secure Email and Web Manager15.5.2-005affected
CiscoCisco Secure Email and Web Manager16.0.0-195affected
CiscoCisco Secure Email and Web Manager15.5.3-017affected
CiscoCisco Secure Email and Web Manager16.0.1-010affected
CiscoCisco Secure Email and Web Manager15.0.1-035affected
CiscoCisco Secure Email and Web Manager16.0.2-088affected
CiscoCisco Secure Email and Web Manager15.5.4-007affected
CiscoCisco Secure Email and Web Manager15.0.2-007affected
CiscoCisco Secure Email and Web Manager16.0.4-010affected
CiscoCisco Secure Email and Web Manager16.0.3-016affected
CiscoCisco Secure Email and Web Manager16.5.0-429affected

Weaknesses

  • CWE-1284: Improper Validation of Specified Quantity in Input

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References