A vulnerability in a policy-based Cisco Application Visibility and Control (AVC) implementation of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to evade the antivirus scanner and download a malicious file onto an endpoint. The vulnerability is due to improper handling of a crafted range request header. An attacker could exploit this vulnerability by sending an HTTP request with a crafted range request header through the affected device. A successful exploit could allow the attacker to evade the antivirus scanner and download malware onto the endpoint without detection by Cisco Secure Web Appliance.
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 8 products from cisco, from cisco, from cisco and 5 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2025-02-05T17:15:25.527
2025-08-05T19:28:30.367
Analyzed
CVSSv3.1: 5.8 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | asyncos | 11.8.0-414 | Yes |
| Operating System | cisco | asyncos | 11.8.0-429 | Yes |
| Operating System | cisco | asyncos | 11.8.0-453 | Yes |
| Operating System | cisco | asyncos | 11.8.1-023 | Yes |
| Operating System | cisco | asyncos | 11.8.3-018 | Yes |
| Operating System | cisco | asyncos | 11.8.3-021 | Yes |
| Operating System | cisco | asyncos | 11.8.4-004 | Yes |
| Operating System | cisco | asyncos | 12.0.1-268 | Yes |
| Operating System | cisco | asyncos | 12.0.1-334 | Yes |
| Operating System | cisco | asyncos | 12.0.2-004 | Yes |
| Operating System | cisco | asyncos | 12.0.2-012 | Yes |
| Operating System | cisco | asyncos | 12.0.3-005 | Yes |
| Operating System | cisco | asyncos | 12.0.3-007 | Yes |
| Operating System | cisco | asyncos | 12.0.4-002 | Yes |
| Operating System | cisco | asyncos | 12.0.5-011 | Yes |
| Operating System | cisco | asyncos | 12.5.1-011 | Yes |
| Operating System | cisco | asyncos | 12.5.1-043 | Yes |
| Operating System | cisco | asyncos | 12.5.2-007 | Yes |
| Operating System | cisco | asyncos | 12.5.2-011 | Yes |
| Operating System | cisco | asyncos | 12.5.3-002 | Yes |
| Operating System | cisco | asyncos | 12.5.4-005 | Yes |
| Operating System | cisco | asyncos | 12.5.4-011 | Yes |
| Operating System | cisco | asyncos | 12.5.5-004 | Yes |
| Operating System | cisco | asyncos | 12.5.5-005 | Yes |
| Operating System | cisco | asyncos | 12.5.5-008 | Yes |
| Operating System | cisco | asyncos | 12.5.6-008 | Yes |
| Operating System | cisco | asyncos | 14.0.1-014 | Yes |
| Operating System | cisco | asyncos | 14.0.1-040 | Yes |
| Operating System | cisco | asyncos | 14.0.1-053 | Yes |
| Operating System | cisco | asyncos | 14.0.1-503 | Yes |
| Operating System | cisco | asyncos | 14.0.2-012 | Yes |
| Operating System | cisco | asyncos | 14.0.3-014 | Yes |
| Operating System | cisco | asyncos | 14.0.4-005 | Yes |
| Operating System | cisco | asyncos | 14.0.5-007 | Yes |
| Operating System | cisco | asyncos | 14.1.0-032 | Yes |
| Operating System | cisco | asyncos | 14.1.0-041 | Yes |
| Operating System | cisco | asyncos | 14.1.0-047 | Yes |
| Operating System | cisco | asyncos | 14.5.0-498 | Yes |
| Operating System | cisco | asyncos | 14.5.0-537 | Yes |
| Operating System | cisco | asyncos | 14.5.0-673 | Yes |
| Operating System | cisco | asyncos | 14.5.1-008 | Yes |
| Operating System | cisco | asyncos | 14.5.1-016 | Yes |
| Operating System | cisco | asyncos | 14.5.1-510 | Yes |
| Operating System | cisco | asyncos | 14.5.1-607 | Yes |
| Operating System | cisco | asyncos | 14.5.2-011 | Yes |
| Operating System | cisco | asyncos | 14.5.3-033 | Yes |
| Operating System | cisco | asyncos | 15.0.0-322 | Yes |
| Operating System | cisco | asyncos | 15.0.0-355 | Yes |
| Operating System | cisco | asyncos | 15.1.0-287 | Yes |
| Operating System | cisco | asyncos | 15.2.0-116 | Yes |
| Operating System | cisco | asyncos | 15.2.0-164 | Yes |
| Application | cisco | secure_web_appliance_virtual_s1000v | - | No |
| Application | cisco | secure_web_appliance_virtual_s100v | - | No |
| Application | cisco | secure_web_appliance_virtual_s300v | - | No |
| Application | cisco | secure_web_appliance_virtual_s600v | - | No |
| Hardware | cisco | secure_web_appliance_s196 | - | No |
| Hardware | cisco | secure_web_appliance_s396 | - | No |
| Hardware | cisco | secure_web_appliance_s696 | - | No |
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.