A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco ESA and Cisco WSA, both virtual and hardware appliances, that are configured with message or content filters to scan incoming email attachments on the ESA or services scanning content of web access on the WSA. More Information: SCvb91473, CSCvc76500. Known Affected Releases: 10.0.0-203 9.9.9-894 WSA10.0.0-233.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited integrity, for affected systems. Impacting 2 products from cisco, from cisco organizations running these solutions should prioritize assessment and patching.
First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2017-02-22T02:59:00.230
2025-04-20T01:37:25.860
Deferred
CVSSv3.0: 5.8 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | web_security_appliance | 10.0.0-082 | Yes |
| Application | cisco | web_security_appliance | 10.0.0-124 | Yes |
| Application | cisco | web_security_appliance | 10.0.0-125 | Yes |
| Application | cisco | web_security_appliance | 10.0.0-203 | Yes |
| Application | cisco | web_security_appliance | 10.0.0-232 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 9.9.6-026 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 9.9.9-894 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 10.0.0-082 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 10.0.0-124 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 10.0.0-125 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 10.0.0-203 | Yes |
| Operating System | cisco | email_security_appliance_firmware | 10.0.0-232 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.