A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 27 products from xmlsoft, from redhat, from oracle and 24 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, 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.
2021-07-09T17:15:07.973
2024-11-21T06:21:48.007
Modified
CVSSv3.1: 6.5 (MEDIUM)
AV:N/AC:L/Au:S/C:N/I:N/A:P
8.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | xmlsoft | libxml2 | < 2.9.11 | Yes |
| Application | redhat | jboss_core_services | - | Yes |
| Application | oracle | zfs_storage_appliance_kit | 8.8 | Yes |
| Application | netapp | active_iq_unified_manager | - | Yes |
| Application | netapp | cloud_backup | - | Yes |
| Application | netapp | clustered_data_ontap | - | Yes |
| Application | netapp | clustered_data_ontap_antivirus_connector | - | Yes |
| Application | netapp | manageability_software_development_kit | - | Yes |
| Application | netapp | ontap_select_deploy_administration_utility | - | Yes |
| Application | netapp | smi-s_provider | - | Yes |
| Application | netapp | snapdrive | - | Yes |
| Operating System | netapp | h410c_firmware | - | Yes |
| Hardware | netapp | h410c | - | No |
| Operating System | netapp | h300s_firmware | - | Yes |
| Hardware | netapp | h300s | - | No |
| Operating System | netapp | h500s_firmware | - | Yes |
| Hardware | netapp | h500s | - | No |
| Operating System | netapp | h700s_firmware | - | Yes |
| Hardware | netapp | h700s | - | No |
| Operating System | netapp | h300e_firmware | - | Yes |
| Hardware | netapp | h300e | - | No |
| Operating System | netapp | h500e_firmware | - | Yes |
| Hardware | netapp | h500e | - | No |
| Operating System | netapp | h700e_firmware | - | Yes |
| Hardware | netapp | h700e | - | No |
| Operating System | netapp | h410s_firmware | - | Yes |
| Hardware | netapp | h410s | - | 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 xmlsoft'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.