A vulnerability in the email message and content filtering for malformed Multipurpose Internet Mail Extensions (MIME) headers of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass the filtering functionality of the targeted device. Emails that should have been quarantined could instead be processed. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco ESA and Cisco WSA on both virtual and hardware appliances that are configured with message or content filters to scan incoming email attachments. More Information: CSCuy54740, CSCuy75174. Known Affected Releases: 9.7.1-066 9.5.0-575 WSA10.0.0-000. Known Fixed Releases: 10.0.0-125 9.1.1-038 9.7.2-047.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, 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 confidentiality (data exposure), for affected systems. Impacting 3 products from cisco, from cisco, from cisco organizations running these solutions should prioritize assessment and patching.
First disclosed in 2016, 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.
2016-10-28T10:59:11.387
2025-04-12T10:46:40.837
Deferred
CVSSv3.0: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | email_security_appliance | 8.0.1-023 | Yes |
| Application | cisco | email_security_appliance | 8.0_base | Yes |
| Application | cisco | email_security_appliance | 8.5.0-000 | Yes |
| Application | cisco | email_security_appliance | 8.5.0-er1-198 | Yes |
| Application | cisco | email_security_appliance | 8.5.6-052 | Yes |
| Application | cisco | email_security_appliance | 8.5.6-073 | Yes |
| Application | cisco | email_security_appliance | 8.5.6-074 | Yes |
| Application | cisco | email_security_appliance | 8.5.6-106 | Yes |
| Application | cisco | email_security_appliance | 8.5.6-113 | Yes |
| Application | cisco | email_security_appliance | 8.5.7-042 | Yes |
| Application | cisco | email_security_appliance | 8.6.0 | Yes |
| Application | cisco | email_security_appliance | 8.6.0-011 | Yes |
| Application | cisco | email_security_appliance | 8.9.0 | Yes |
| Application | cisco | email_security_appliance | 8.9.1-000 | Yes |
| Application | cisco | email_security_appliance | 8.9.2-032 | Yes |
| Application | cisco | email_security_appliance | 9.0.0 | Yes |
| Application | cisco | email_security_appliance | 9.0.0-212 | Yes |
| Application | cisco | email_security_appliance | 9.0.0-461 | Yes |
| Application | cisco | email_security_appliance | 9.0.5-000 | Yes |
| Application | cisco | email_security_appliance | 9.1.0 | Yes |
| Application | cisco | email_security_appliance | 9.1.0-011 | Yes |
| Application | cisco | email_security_appliance | 9.1.0-032 | Yes |
| Application | cisco | email_security_appliance | 9.1.0-101 | Yes |
| Application | cisco | email_security_appliance | 9.1.1-000 | Yes |
| Application | cisco | email_security_appliance | 9.4.0 | Yes |
| Application | cisco | email_security_appliance | 9.4.4-000 | Yes |
| Application | cisco | email_security_appliance | 9.5.0-000 | Yes |
| Application | cisco | email_security_appliance | 9.5.0-201 | Yes |
| Application | cisco | email_security_appliance | 9.6.0-000 | Yes |
| Application | cisco | email_security_appliance | 9.6.0-042 | Yes |
| Application | cisco | email_security_appliance | 9.6.0-051 | Yes |
| Application | cisco | email_security_appliance | 9.7.0-125 | Yes |
| Application | cisco | email_security_appliance | 9.7.1-066 | Yes |
| Application | cisco | email_security_appliance | 9.9.6-026 | Yes |
| Application | cisco | email_security_appliance | 9.9_base | Yes |
| Application | cisco | web_security_appliance | 5.6.0-623 | Yes |
| Application | cisco | web_security_appliance | 6.0.0-000 | Yes |
| Application | cisco | web_security_appliance | 7.1.0 | Yes |
| Application | cisco | web_security_appliance | 7.1.1 | Yes |
| Application | cisco | web_security_appliance | 7.1.2 | Yes |
| Application | cisco | web_security_appliance | 7.1.3 | Yes |
| Application | cisco | web_security_appliance | 7.1.4 | Yes |
| Application | cisco | web_security_appliance | 7.5.0-000 | Yes |
| Application | cisco | web_security_appliance | 7.5.0-825 | Yes |
| Application | cisco | web_security_appliance | 7.5.1-000 | Yes |
| Application | cisco | web_security_appliance | 7.5.2-000 | Yes |
| Application | cisco | web_security_appliance | 7.5.2-hp2-303 | Yes |
| Application | cisco | web_security_appliance | 7.7.0-000 | Yes |
| Application | cisco | web_security_appliance | 7.7.0-608 | Yes |
| Application | cisco | web_security_appliance | 7.7.1-000 | Yes |
| Application | cisco | web_security_appliance | 7.7.5-835 | Yes |
| Application | cisco | web_security_appliance | 8.0.0-000 | Yes |
| Application | cisco | web_security_appliance | 8.0.5 | Yes |
| Application | cisco | web_security_appliance | 8.0.6 | Yes |
| Application | cisco | web_security_appliance | 8.0.6-078 | Yes |
| Application | cisco | web_security_appliance | 8.0.6-119 | Yes |
| Application | cisco | web_security_appliance | 8.0.7 | Yes |
| Application | cisco | web_security_appliance | 8.0.7-142 | Yes |
| Application | cisco | web_security_appliance | 8.0.8-mr-113 | Yes |
| Application | cisco | web_security_appliance | 8.5.0-497 | Yes |
| Application | cisco | web_security_appliance | 8.5.0.000 | Yes |
| Application | cisco | web_security_appliance | 8.5.1-021 | Yes |
| Application | cisco | web_security_appliance | 8.5.2-024 | Yes |
| Application | cisco | web_security_appliance | 8.5.2-027 | Yes |
| Application | cisco | web_security_appliance | 8.5.3-055 | Yes |
| Application | cisco | web_security_appliance | 8.8.0-000 | Yes |
| Application | cisco | web_security_appliance | 8.8.0-085 | Yes |
| Application | cisco | web_security_appliance | 9.0.0-193 | Yes |
| Application | cisco | web_security_appliance | 9.0_base | Yes |
| Application | cisco | web_security_appliance | 9.1.0-000 | Yes |
| Application | cisco | web_security_appliance | 9.1.0-070 | Yes |
| Application | cisco | web_security_appliance | 9.1_base | Yes |
| Application | cisco | web_security_appliance | 9.5.0-235 | Yes |
| Application | cisco | web_security_appliance | 9.5.0-284 | Yes |
| Application | cisco | web_security_appliance | 9.5.0-444 | Yes |
| Application | cisco | web_security_appliance | 9.5_base | Yes |
| Application | cisco | web_security_appliance_8.0.5 | hot_patch_1 | 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.