CVE-2017-12353
mediumpriority · track · 24EPSS 0.016 · 76 %ileEUUSEPSS · scored 2026-10-28
A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. The vulnerability is due to improper error handling of a malformed MIME header in an email attachment. An attacker could exploit this vulnerability by sending an email with a crafted MIME attachment. For example, a successful exploit could allow the attacker to bypass configured user filters to drop the email. The malformed MIME headers may not be RFC compliant. However, some mail clients could still allow users to access the attachment, which may not have been properly filtered by the device. Cisco Bug IDs: CSCvf44666.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
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affected products (2)
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also known as (3)
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sources
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references (9)
External citations — patches, advisories, analysis.
- http://www.securitytracker.com/id/1039917cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-esacnnvd
- https://www.securityfocus.com/bid/102002cnnvd
- http://www.securityfocus.com/bid/102002enisa_euvd
- http://www.securitytracker.com/id/1039917enisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-esaenisa_euvd
- http://www.securityfocus.com/bid/102002Third Party AdvisoryVDB Entrynvd
- http://www.securitytracker.com/id/1039917Third Party AdvisoryVDB Entrynvd
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