PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-76461 Cisco CVE debrief

Cisco Secure Email Gateway contains a SQL injection vulnerability, which is a critical vulnerability that allows attackers to inject malicious SQL code. This vulnerability has a high impact on the confidentiality, integrity, and availability of the affected system. Defenders should assess exposure and apply mitigations according to vendor instructions. The vulnerability is listed in the CISA Known Exploited Vulnerabilities catalog, indicating that it is being actively exploited in the wild.

Vendor
Cisco
Product
Secure Email Gateway
CVSS
CRITICAL 9.8
CISA KEV
Listed
Original CVE published
2026-09-14
Original CVE updated
2026-09-14
Advisory published
2026-09-14
Advisory updated
2026-09-14

Who should care

Defenders responsible for Cisco Secure Email Gateway deployments should assess exposure and apply mitigations in accordance with vendor instructions.

Why it matters

Defenders should prioritize assessing exposure and applying mitigations for the SQL injection vulnerability in Cisco Secure Email Gateway due to its critical severity and potential for exploitation.

  • Verify Cisco Secure Email Gateway deployments for potential exposure
  • Assess the risk of SQL injection attacks
  • Apply mitigations to prevent potential exploitation

Technical summary

A SQL injection vulnerability exists in Cisco Secure Email Gateway, which could allow an attacker to inject malicious SQL code. The vulnerability has a CVSS score of 9.8 and is considered critical. The CISA Known Exploited Vulnerabilities catalog and CVE Program record indicate a critical vulnerability, but details on exploitation and impact are limited. The vulnerability affects Cisco Secure Email Gateway deployments, and defenders should assess exposure and apply mitigations according to vendor instructions.

Defensive priority

High priority for defenders to assess exposure and apply mitigations

Recommended defensive actions

  • Assess exposure of Cisco Secure Email Gateway deployments
  • Apply mitigations in accordance with vendor instructions
  • Ensure compliance with CISA's BOD 26-04 guidance

Evidence notes

The CISA Known Exploited Vulnerabilities catalog and CVE Program record indicate a SQL injection vulnerability in Cisco Secure Email Gateway, but details on exploitation and impact are limited.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76461 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76461

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-76461 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76461

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.