A vulnerability in the malware detection functionality within Advanced Malware Protection (AMP) of Cisco AsyncOS Software for Cisco Email Security Appliances (ESAs) could allow an unauthenticated, remote attacker to cause an email attachment containing malware to be delivered to the end user. The vulnerability is due to the failure of AMP to scan certain EML attachments that could contain malware. An attacker could exploit this vulnerability by sending an email with a crafted EML attachment through the targeted device. A successful exploit could allow the attacker to bypass the configured ESA email message and content filtering and allow the malware to be delivered to the end user. Vulnerable Products: This vulnerability affects Cisco AsyncOS Software for Cisco ESA, both virtual and hardware appliances, that are configured with message or content filters to scan incoming email attachments on the ESA. Cisco Bug IDs: CSCuz81533.
CVE-2017-12218
MEDIUMNVD 5.85.8—
EchelonGraph scoreMEDIUM confidence
Score 5.8 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 5.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.8
- EG Score
- 5.8(medium)
- EPSS
- 73.5%
- KEV
- Not listed
Published
September 7, 2017
Last Modified
May 13, 2026
References (6)
- psirt@ciscohttp://www.securityfocus.com/bid/100681
- psirt@ciscohttp://www.securitytracker.com/id/1039288
- psirt@ciscohttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-esa
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/100681
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039288
- af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-esa
Data Freshness Timeline
(refreshed 9× in last 7d / 36× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2017-12218?
CVE-2017-12218 is a medium vulnerability published on September 7, 2017. A vulnerability in the malware detection functionality within Advanced Malware Protection (AMP) of Cisco AsyncOS Software for Cisco Email Security Appliances (ESAs) could allow an unauthenticated, remote attacker to cause an email attachment containing malware to be delivered to the end user. The…
When was CVE-2017-12218 disclosed?
CVE-2017-12218 was first published in the National Vulnerability Database on September 7, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-12218 actively exploited?
CVE-2017-12218 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-12218?
CVE-2017-12218 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2017-12218?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-12218, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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