- Critical 9.8
- Known exploited (CISA KEV)
CVE-2026-76461
A vulnerability in the email parsing of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. This vulnerability is due to insufficient validation in the email parsing logic. An attacker could exploit this vulnerability by sending a crafted email message that contains malicious SQL statements through an affected device. A successful exploit could allow the attacker to execute arbitrary SQL statements, leading to command execution with root privileges on the un…
Scores
The facts
- Published
- 14 September 2026
- Last changed
- 15 September 2026
- NVD status
- Analyzed
- Severity
- Critical, CVSS 9.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- Affects
- cisco asyncos
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 14 September 2026.
- EPSS
- 29.5% chance of exploitation activity in the next 30 days (percentile 98).
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