Vulnerability in Cisco Secure Email
CVE-2026-76442
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Cisco Secure Email — versions 13.0.0-392, 13.0.5-007, 13.5.1-277
- Cisco Secure Email And Web Manager — versions 12.8.1-002, 12.8.1-021, 13.0.0-249
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-76442?
- CVE-2026-76442 is a high-severity vulnerability in Cisco Secure Email, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2026-09-14.
- How severe is CVE-2026-76442?
- High severity. CVSS v3 base score is 7.5 out of 10.