zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, 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 confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 21 products from zlib, from fedoraproject, from debian and 18 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2022, 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.
2022-08-05T07:15:07.240
2025-05-30T20:15:30.030
Modified
CVSSv3.1: 9.8 (CRITICAL)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | zlib | zlib | ≤ 1.2.12 | Yes |
| Operating System | fedoraproject | fedora | 35 | Yes |
| Operating System | fedoraproject | fedora | 36 | Yes |
| Operating System | fedoraproject | fedora | 37 | Yes |
| Operating System | debian | debian_linux | 10.0 | Yes |
| Application | netapp | active_iq_unified_manager | - | Yes |
| Application | netapp | active_iq_unified_manager | - | Yes |
| Application | netapp | hci | - | Yes |
| Application | netapp | management_services_for_element_software | - | Yes |
| Application | netapp | oncommand_workflow_automation | - | Yes |
| Application | netapp | ontap_select_deploy_administration_utility | - | Yes |
| Application | netapp | storagegrid | - | Yes |
| Hardware | netapp | hci_compute_node | - | Yes |
| 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 | h700s_firmware | - | Yes |
| Hardware | netapp | h700s | - | No |
| Operating System | apple | ipados | < 15.7.1 | Yes |
| Operating System | apple | iphone_os | < 15.7.1 | Yes |
| Operating System | apple | iphone_os | < 16.1 | Yes |
| Operating System | apple | macos | < 11.7.1 | Yes |
| Operating System | apple | macos | < 12.6.1 | Yes |
| Operating System | apple | watchos | < 9.1 | Yes |
| Application | stormshield | stormshield_network_security | < 3.7.34 | Yes |
| Application | stormshield | stormshield_network_security | < 3.11.22 | Yes |
| Application | stormshield | stormshield_network_security | < 4.3.16 | Yes |
| Application | stormshield | stormshield_network_security | < 4.6.3 | 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 zlib'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.