{"id":"CVE-2015-6291","aliases":["EUVD-2015-6233","GHSA-xmvm-48fw-3ghc"],"status":"published","title":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on...","description":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01925,"percentile":0.80097,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2015-11-06T02:00:00Z","modified":"2026-06-17T00:30:39Z","products":[{"vendor":"cisco","product":"email_security_appliance"}],"references":[{"url":"http://www.securitytracker.com/id/1034064","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151104-esa2","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-6291"},{"url":"https://github.com/advisories/GHSA-xmvm-48fw-3ghc"}],"sources":{"cve":[{"id":"CVE-2015-6291","description":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.","status":"published","published":"2015-11-06T02:00:00Z","modified":"2024-08-06T07:15:13.278Z","updated_at":"2026-11-02T14:35:42.680858Z"}],"euvd":[{"id":"EUVD-2015-6233","description":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.","status":"published","published":"2015-11-06T02:00:00Z","modified":"2024-08-06T07:15:13Z","updated_at":"2026-11-03T02:21:56.647378Z"}],"ghsa":[{"id":"GHSA-xmvm-48fw-3ghc","title":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on...","description":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.","status":"published","published":"2022-05-17T03:27:03Z","modified":"2023-01-27T05:08:20Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:17.252355Z"}],"nvd":[{"id":"CVE-2015-6291","description":"Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.","status":"published","published":"2015-11-06T03:59:00.09Z","modified":"2026-06-17T00:30:39Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:12.30866Z"}]}}