CVE-2026-76461

Published Sep 14, 2026

Last updated 2 months ago

Exploit known CVSS critical 9.8

Network

SQL injection

Database

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-76461 is a SQL injection vulnerability located in the email parsing functionality of Cisco AsyncOS Software for Cisco Secure Email Gateway. The flaw is caused by insufficient validation within the software's email parsing logic. An unauthenticated, remote attacker can exploit this vulnerability by sending a specially crafted email message containing malicious SQL statements through an affected device. A successful exploit allows the attacker to execute arbitrary SQL statements, which can ultimately lead to command execution with root privileges on the underlying operating system. The vulnerability affects both physical and virtual Cisco Secure Email Gateway devices, regardless of their configuration. Cisco has released software updates to address the issue, and there are no workarounds available.

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.
Source: psirt@cisco.com
NVD status: Analyzed
Products: asyncos

Risk scores

CVSS 3.1

Type: Secondary
Base score: 9.8
Impact score: 5.9
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: CRITICAL

Known exploits

Data from CISA

Vulnerability name: Cisco Secure Email Gateway SQL Injection Vulnerability
Exploit added on: Sep 14, 2026
Exploit action due: Sep 17, 2026
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Weaknesses

psirt@cisco.com: CWE-89

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.