CVE-2026-76442
CVE-2026-76442 is covered by the cisco-sa-hardening-esa-dfCrfXkm security bulletin. Not in the CISA KEV catalog. Critical advisory severity.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
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CVE-2026-76442 key facts
- CISA KEV
- Not listed (catalog checked )
- Highest advisory severity
- Critical
- Vendor advisories
- 1 from Cisco
- VulniPulse record
- Published · Updated
Is CVE-2026-76442 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-76442 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-76442?
This CVE is tracked through a multi-CVE bulletin, so its fixed releases may differ from the bulletin-wide values below. Check the vendor source.
Vendor advisory comparison
Cisco
1 advisory- Advisory severityCritical9.8
Critical [CVE-2026-20353 +4] Cisco Secure Email Gateway and Secure Email and Web Manager Security Hardening Release: September 2026
cisco-sa-hardening-esa-dfCrfXkmSource published Source updated
This bulletin covers 5 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
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. These vulnerabilities were found during internal testing. Two of them are known to be actively exploited. For more information, see Cisco Secure Email Gateway SQL Injection Vulnerability and Cisco Secure Email Gateway Arbitrary File Write Vulnerability. To assist customers in patching and streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single…
- Affected products in this advisory
- Secure Email and Web Manager
- Source-reported affected versions
- Scope: These vulnerabilities affect Cisco Secure Email Gateway and Cisco Secure Email and Web Manager, regardless of device configuration.
- Release 15.5 and earlier (first fixed: 15.5.5-014)
- 16.0 — Migrate to a fixed release
- Release 16.5 (first fixed: 16.5.0-780)
2 more entries in the full advisory.
- Source-reported fixed versions
- 15.5.5-014
- 16.5.0-780
- 15.5.5-006
- 16.5.0-429
- Mitigation guidance
- Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
- Release 15.5 and earlier: upgrade to 15.5.5-014.
- Release 16.0: migrate to a fixed release.
- Release 16.5: upgrade to 16.5.0-780.
3 more entries in the full advisory.
- Workarounds
- There are no workarounds that address these vulnerabilities.
More Cisco advisories
- CVE-2025-20393Dec 17, 2025Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution
- CVE-2026-76418Oct 28, 2026Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense
- cisco-sa-notice-I8z3n6lKOct 28, 2026Cisco Advance Notification for Publication of November 4, 2026, Security Advisories
- CVE-2026-105482Oct 27, 2026Vulnerabilities in Node.js Affecting Cisco Products: October 2026
- cisco-sa-emudhra-info-ScS22A1rOct 23, 2026Cisco Informational for Emergency Distrust of eMudhra Root and Intermediate Certificate
- CVE-2026-109618Oct 21, 2026Vulnerabilities in PHP Affecting Cisco Products: October 2026
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