{"id":"CVE-2026-76461","title":"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 …","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.\r\n\r\nThis …","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-89"],"vendor":"cisco","product":"asyncos","affected":["asyncos < 15.5.5-014","asyncos >= 16.0, < 16.0.4-302","asyncos >= 16.5, < 16.5.0-780"],"patched":["asyncos 16.5.0-780"],"published":"2026-09-14","updated":"2026-09-15","sourceUpdated":"2026-09-15T12:47:32.497","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76461","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX","label":"psirt@cisco.com"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76461","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://software.cisco.com"}],"tags":["nvd","kev","in-the-wild","exploit-available","cve.org","csaf","vendor-advisory","cisco"],"kev":true,"kevDateAdded":"2026-09-14","kevDueDate":"2026-09-17","kevRansomware":false,"exploited":true,"exploits":{"github":4,"githubRepos":["https://github.com/0xBlackash/CVE-2026-76461","https://github.com/S3v3n-JG/CVE-2026-76461","https://github.com/HORKimhab/CVE-2026-76461"],"checkedAt":"2026-09-21T15:30:40.768Z"},"exploitAvailable":true,"zeroDay":true,"ssvc":{"exploitation":"active","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-14T19:40:04.523220Z"},"ingestedAt":"2026-09-14T16:34:40.811Z","epss":0.02009,"epssPercentile":0.79731,"slug":"CVE-2026-76461","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `asyncos < 15.5.5-014`\n- `asyncos >= 16.0, < 16.0.4-302`\n- `asyncos >= 16.5, < 16.5.0-780`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `asyncos 16.5.0-780`\n\n## Vendor advisories\n\n- **cisco-sa-esa-inj-2bLVGmhX** · Cisco · affected: Cisco Secure Email (23 versions) · updated 2026-09-17 · [advisory](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-inj-2bLVGmhX)","depth":"hadal","depthScore":79,"depthScoreParts":{"impact":53.9,"likelihood":0.4,"exploitation":25,"ransomware":0},"changes":[{"seq":203445,"id":"CVE-2026-76461","ts":1789446059550,"field":"zero_day","old":"false","new":"true"},{"seq":203444,"id":"CVE-2026-76461","ts":1789446059550,"field":"kev","old":"false","new":"true"},{"seq":203298,"id":"CVE-2026-76461","ts":1789416907097,"field":"exploit_available","old":"false","new":"true"},{"seq":203297,"id":"CVE-2026-76461","ts":1789416907097,"field":"exploited","old":"false","new":"true"}]}