Vulnerability-Lookup

CVE-2026-76461 (GCVE-0-2026-76461)

Vulnerability from cvelistv5 – Published: 2026-09-14 16:09 – Updated: 2026-09-15 03:56

CISA Previdian

Title

Cisco Secure Email Gateway SQL Injection Vulnerability

Summary

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.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 00:00 UTC

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

cisco mitre root

References

2 references

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version	CPE status
Cisco	Cisco Secure Email	Affected: 14.0.0-698 Affected: 13.5.1-277 Affected: 13.0.0-392 Affected: 14.2.0-620 Affected: 13.0.5-007 Affected: 13.5.4-038 Affected: 14.2.1-020 Affected: 14.3.0-032 Affected: 15.0.0-104 Affected: 15.0.1-030 Affected: 15.5.0-048 Affected: 15.5.1-055 Affected: 15.5.2-018 Affected: 16.0.0-050 Affected: 15.0.3-002 Affected: 16.0.0-054 Affected: 15.5.3-022 Affected: 16.0.1-017 Affected: 15.5.4-012 Affected: 16.0.4-016 Affected: 15.0.5-016 Affected: 16.0.2-112 Affected: 16.0.3-044	guessed

CISA

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 9ac436c8-102a-4823-ba5c-e8df968c9d63

Vulnerability ID: CVE-2026-76461

Status: Confirmed

Status Updated: 2026-09-14 00:00 UTC

Exploited: Yes

Timestamps

First Seen: 2026-09-14

Asserted: 2026-09-14

Scope

Notes: Cisco Secure Email Gateway SQL Injection Vulnerability | Affected: Cisco / Secure Email Gateway | Description: Cisco AsyncOS software for Cisco Secure Email Gateway (SEG) contains a SQL injection vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. | 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. | Due date: 2026-09-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-76461

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details

Cwes	CWE-89
Feed	CISA Known Exploited Vulnerabilities Catalog
Product	Secure Email Gateway
Due Date	2026-09-17
Date Added	2026-09-14
Vendorproject	Cisco
Vulnerabilityname	Cisco Secure Email Gateway SQL Injection Vulnerability
Knownransomwarecampaignuse	Unknown

References

CVE-2026-76461

Created: 2026-09-14 20:00 UTC | Updated: 2026-09-14 20:00 UTC

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: a16cbb03-0793-4e02-8eba-a5b7659656d1

Vulnerability ID: CVE-2026-76461

Status: Confirmed

Status Updated: 2026-09-14 16:00 UTC

Exploited: Yes

Timestamps

First Seen: 2026-09-14

Asserted: 2026-09-14

Scope

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details

Feed	Previdian (previdian.com)
Title	Cisco Secure Email Gateway SQL Injection Vulnerability
Cve Id	CVE-2026-76461
Vendor	Cisco
Ghsa Id	GHSA-JWPF-JWW6-H6VR
Product	Cisco Secure Email
Added Date	2026-09-14T16:00:00.000Z
Cvss Score	9.8
Epss Score	None
Previous Ids
Cvss Severity	CRITICAL
Virtual Patch	False
Cvss Estimated	False
Epss Percentile	None
Used In Malware	unknown
Vulnerability Id	CVE-2026-76461
Ahead Of Cisa Kev	`{ "count": 4, "unit": "hour" }`
Not Yet In Cisa Kev	False

References

Created: 2026-09-15 16:00 UTC | Updated: 2026-09-15 16:00 UTC

Show details on NVD website

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}

FKIE_CVE-2026-76461

Vulnerability from fkie_nvd - Published: 2026-09-14 17:17 - Updated: 2026-09-15 12:47

CISA Previdian

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	psirt@cisco.com	https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX	Vendor Advisory
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461	US Government Resource

Impacted products

Vendor	Product	Version
cisco	asyncos	*
cisco	asyncos	*
cisco	asyncos	*
cisco	secure_email_gateway_virtual_appliance_c100v	-
cisco	secure_email_gateway_virtual_appliance_c300v	-
cisco	secure_email_gateway_virtual_appliance_c600v	-
cisco	secure_email_gateway_c195	-
cisco	secure_email_gateway_c395	-
cisco	secure_email_gateway_c695	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Secure Email",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "14.0.0-698"
            },
            {
              "status": "affected",
              "version": "13.5.1-277"
            },
            {
              "status": "affected",
              "version": "13.0.0-392"
            },
            {
              "status": "affected",
              "version": "14.2.0-620"
            },
            {
              "status": "affected",
              "version": "13.0.5-007"
            },
            {
              "status": "affected",
              "version": "13.5.4-038"
            },
            {
              "status": "affected",
              "version": "14.2.1-020"
            },
            {
              "status": "affected",
              "version": "14.3.0-032"
            },
            {
              "status": "affected",
              "version": "15.0.0-104"
            },
            {
              "status": "affected",
              "version": "15.0.1-030"
            },
            {
              "status": "affected",
              "version": "15.5.0-048"
            },
            {
              "status": "affected",
              "version": "15.5.1-055"
            },
            {
              "status": "affected",
              "version": "15.5.2-018"
            },
            {
              "status": "affected",
              "version": "16.0.0-050"
            },
            {
              "status": "affected",
              "version": "15.0.3-002"
            },
            {
              "status": "affected",
              "version": "16.0.0-054"
            },
            {
              "status": "affected",
              "version": "15.5.3-022"
            },
            {
              "status": "affected",
              "version": "16.0.1-017"
            },
            {
              "status": "affected",
              "version": "15.5.4-012"
            },
            {
              "status": "affected",
              "version": "16.0.4-016"
            },
            {
              "status": "affected",
              "version": "15.0.5-016"
            },
            {
              "status": "affected",
              "version": "16.0.2-112"
            },
            {
              "status": "affected",
              "version": "16.0.3-044"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "cisaActionDue": "2026-09-17",
  "cisaExploitAdd": "2026-09-14",
  "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (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\u0027s internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
  "cisaVulnerabilityName": "Cisco Secure Email Gateway SQL Injection Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E78A2134-478B-4F8A-AE74-C1D85C8426F5",
              "versionEndExcluding": "15.5.5-014",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "930177FE-C639-42C2-ACB2-16DA3D1E4F1C",
              "versionEndExcluding": "16.0.4-302",
              "versionStartIncluding": "16.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "44348B0F-6723-4FC1-81CD-F204BBC15F76",
              "versionEndExcluding": "16.5.0-780",
              "versionStartIncluding": "16.5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c100v:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5B6FBC8A-8187-4903-B786-6CF341C142B5",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c300v:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "68864429-9730-43E9-96C3-20B9035BB291",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_email_gateway_virtual_appliance_c600v:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B52D8B2B-E9AE-4B02-87BD-9CF9FA95906A",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:cisco:secure_email_gateway_c195:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7B1322B8-1CF9-4B17-9A58-38788051ED4F",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:cisco:secure_email_gateway_c395:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "139A640B-1957-4953-AA88-9D373A5152D1",
              "vulnerable": false
            },
            {
              "criteria": "cpe:2.3:h:cisco:secure_email_gateway_c695:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "F08EA2AD-618B-4834-A52D-73F6A4502DF1",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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.\r\n\r\nThis 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."
    }
  ],
  "id": "CVE-2026-76461",
  "lastModified": "2026-09-15T12:47:32.497",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-76461",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-14T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-14T17:17:51.113",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    }
  ]
}

GHSA-JWPF-JWW6-H6VR

Vulnerability from github – Published: 2026-09-14 18:31 – Updated: 2026-09-14 21:31

Details

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.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-76461"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-89"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T17:17:51Z",
    "severity": "CRITICAL"
  },
  "details": "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.\n\nThis 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.",
  "id": "GHSA-jwpf-jww6-h6vr",
  "modified": "2026-09-14T21:31:41Z",
  "published": "2026-09-14T18:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76461"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

NCSC-2026-0368

Vulnerability from csaf_ncscnl - Published: 2026-09-14 18:27 - Updated: 2026-09-14 18:27

Summary

Kwetsbaarheid verholpen in Cisco Secure Email Gateway

Scope

1 vulnerability in this advisory, including CVE-2026-76461.

CVE-2026-76461

A vulnerability in Cisco AsyncOS Software for Cisco Secure Email Gateway allows unauthenticated remote attackers to execute arbitrary commands and SQL statements with root privileges via crafted email parsing exploits due to insufficient validation.

9.8 (Critical)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-76461 (GCVE-0-2026-76461)

CISA

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Vendor Report Successful Exploitation Confidence: 80% Source: cisa-kev

Details

References

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: previdian

Details

References

FKIE_CVE-2026-76461

GHSA-JWPF-JWW6-H6VR

NCSC-2026-0368

Tags

Sightings

Nomenclature