{"id":"CVE-2026-76461","published":"2026-09-14T17:17:51Z","modified":"2026-09-15T12:47:32Z","title":"Cisco Secure Email Gateway SQL Injection Vulnerability","vendor":"Cisco","product":"Secure Email Gateway","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"The Cisco Secure Email Gateway, which runs Cisco AsyncOS Software, contains a flaw in its email parsing logic caused by insufficient input validation. An unauthenticated remote attacker who can send a crafted email message through an affected device can inject malicious SQL statements that execute with root privileges on the underlying operating system, with no user interaction needed.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:53:48Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.29543,"percentile":0.98185,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-09-14","dueDate":"2026-09-17","ransomware":false,"requiredAction":"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.","notes":"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","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-09-14","exploitedFirstSeen":"2026-09-14","ransomware":false,"evidence":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX","date":"2026-09-14"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-09-14"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Teams vishing: fake “IT” tenant","url":"https://otx.alienvault.com/pulse/6ae4ea1b385df05188293ea5","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"EbeeOct2026 Pt6","url":"https://otx.alienvault.com/pulse/6ae18a35499a00890a824f6c","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Beyond the Inbox: How Threat Actors Abuse Microsoft Teams External Chat for Initial Access","url":"https://otx.alienvault.com/pulse/6ae03ee6ee2d553bce6c449b","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Beyond the Inbox: How Threat Actors Abuse Microsoft Teams External Chat for Initial Access","url":"https://otx.alienvault.com/pulse/6adf5e6a54877322e0ed8a09","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"}],"provenance":"machine"},"cwes":[{"id":"CWE-89","name":"Improper Neutralization of Special Elements used in an SQL Command"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated email delivery targets public-facing mail gateway","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"An attacker could exploit this vulnerability by sending a crafted email message","start":313,"end":392}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Arbitrary command execution as root","mappingType":"primary_impact","evidence":[{"from":"description","quote":"execute arbitrary commands with root privileges on the underlying operating system","start":145,"end":227}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-77625","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-77625","exploited":true,"exploitedSince":"2026-09-14","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":3,"skipped":1,"earliest":"2026-09-15","earliestUrl":"https://github.com/HORKimhab/CVE-2026-76461","repos":[{"name":"0xBlackash/CVE-2026-76461","url":"https://github.com/0xBlackash/CVE-2026-76461","stars":2,"created":"2026-09-15"},{"name":"S3v3n-JG/CVE-2026-76461","url":"https://github.com/S3v3n-JG/CVE-2026-76461","stars":1,"created":"2026-09-17"},{"name":"HORKimhab/CVE-2026-76461","url":"https://github.com/HORKimhab/CVE-2026-76461","stars":0,"created":"2026-09-15"}]},"first":{"date":"2026-09-15","source":"PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-76461"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2026-09-14","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76461","provenance":"source"},{"date":"2026-09-14","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX","provenance":"source"},{"date":"2026-09-14","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2026-09-14","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-77625","provenance":"source"},{"date":"2026-09-15","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/HORKimhab/CVE-2026-76461","provenance":"source"}],"speed":{"daysToPublicExploit":1,"firstExploitFrom":"PoC-in-GitHub","daysToKev":0},"priority":{"score":79.5,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":10.0,"detail":"added 47 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.64,"detail":"percentile 0.9819"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"3 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}