Cisco security advisory (AV26-921)
Cybersecurity Classified by Officially
Serial Number: AV26-921
Date: September 14, 2026
As of September 14, 2026, Cisco is affected by vulnerabilities in the following products:
- Cisco AsyncOS for Cisco Secure Email Gateway
- Prior to 15.5.5-014
- Prior to 16.0.4-302
- Prior to 16.5.0-780
- Cisco Secure Email Gateway
- Prior to 15.5.5-014
- Prior to 16.5.0-780
- Cisco Secure Email and Web Manager
- Prior to 15.5.5-006
- Prior to 16.5.0-429
On September 14, 2026, Cisco stated that CVE-2026-76461 is being actively exploited.
On September 14, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-76461 to their Known Exploited Vulnerabilities (KEV) Database.
The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.
This is an extract. The publication continues at the source.
Read the original at the source: https://cyber.gc.ca/en/alerts-advisories/cisco-security-advisory-av26-921
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Provenance
- Organization
- Canadian Centre for Cyber Security — imported from official source
- Official source
- https://www.cyber.gc.ca/api/cccs/rss/v1/get?feed=alerts_advisories&lang=en ATOM
- Imported
- September 20, 2026 19:52
- Versions
- 1 recorded
- Identity
https://cyber.gc.ca/en/alerts-advisories/cisco-security-advisory-av26-921