CVE-2026-76461
CRITICALCISA KEVEPSS 80th pctlDescription
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 underlying operating system.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Elevated risk: more likely to be exploited than 80% of all known CVEs.
Remediation due: 2026-09-17
References
Related Vulnerabilities
Other CWE-89 (SQL Injection) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2014-3704 | High | 7.5 | 100% | - | Fix |
| CVE-2015-7297 | High | 7.5 | 100% | - | - |
| CVE-2024-29824 | High | 8.8 | 100% | KEV | Fix |
| CVE-2023-34362 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2019-7481 | High | 7.5 | 100% | KEV + Ransom | Fix |
| CVE-2024-29826 | High | 8.8 | 100% | - | Fix |
Common questions
How do I fix CVE-2026-76461?
Upgrade asyncos to 16.5.0-780 or later.
Is CVE-2026-76461 being actively exploited?
Yes. CVE-2026-76461 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-09-17. Treat it as a priority whatever its CVSS score says.
How severe is CVE-2026-76461?
CVE-2026-76461 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-76461 affect?
Published advisories record a fix for asyncos (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-15.