A vulnerability in certain filtering mechanisms of access control lists (ACLs) for Cisco ASR 5000 Series Aggregation Services Routers through 21.x could allow an unauthenticated, remote attacker to bypass ACL rules that have been configured for an affected device. More Information: CSCvb99022 CSCvc16964 CSCvc37351 CSCvc54843 CSCvc63444 CSCvc77815 CSCvc88658 CSCve08955 CSCve14141 CSCve33870.
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 integrity (unauthorized modifications), for affected systems. Impacting 1 product 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.
2017-07-25T19:29:00.207
2025-04-20T01:37:25.860
Deferred
CVSSv3.0: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | asr_5000_series_software | 19.3.5 | Yes |
| Application | cisco | asr_5000_series_software | 19.3.11 | Yes |
| Application | cisco | asr_5000_series_software | 19.3.12 | Yes |
| Application | cisco | asr_5000_series_software | 19.6.0 | Yes |
| Application | cisco | asr_5000_series_software | 19.6.3 | Yes |
| Application | cisco | asr_5000_series_software | 19.6.6 | Yes |
| Application | cisco | asr_5000_series_software | 20.1.v5 | Yes |
| Application | cisco | asr_5000_series_software | 20.2.4 | Yes |
| Application | cisco | asr_5000_series_software | 20.2.12 | Yes |
| Application | cisco | asr_5000_series_software | 20.3.0 | Yes |
| Application | cisco | asr_5000_series_software | 20.3.1 | Yes |
| Application | cisco | asr_5000_series_software | 21.0.v1.66638 | Yes |
| Application | cisco | asr_5000_series_software | 21.0.v2 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.0 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.2 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.m0.65710 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.m0.65921 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.m0.65931 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.m0.65986 | Yes |
| Application | cisco | asr_5000_series_software | 21.1.v0 | Yes |
| Application | cisco | asr_5000_series_software | 21.2.a0.65914 | Yes |
| Application | cisco | asr_5000_series_software | 21.2.a0.65995 | Yes |
| Application | cisco | asr_5000_series_software | 21.3.0 | 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.