CVE-2026-76461 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 28.3% (pctl 98)
Patch first
On CISA KEV — known exploited in the wild, due 2026-09-17.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 28.27% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-89 |
| On CISA KEV | yes — remediate by 2026-09-17 |
| Public exploit | none known |
| Published | 2026-09-14 |
| Last modified | 2026-09-15 |
CISA KEV
| Name | Cisco Secure Email Gateway SQL Injection Vulnerability |
|---|---|
| Added | 2026-09-14 |
| Due | 2026-09-17 |
| Vendor / product | Cisco / Secure Email Gateway |
| Ransomware use | none reported |
Affected (7)
| Vendor | Product |
|---|---|
| cisco | asyncos |
| cisco | secure email gateway c195 |
| cisco | secure email gateway c395 |
| cisco | secure email gateway c695 |
| cisco | secure email gateway virtual appliance c100v |
| cisco | secure email gateway virtual appliance c300v |
| cisco | secure email gateway virtual appliance c600v |
References
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