The netsnmp_udp_fmtaddr function (snmplib/snmpUDPDomain.c) in net-snmp 5.0.9 through 5.4.2.1, when using TCP wrappers for client authorization, does not properly parse hosts.allow rules, which allows remote attackers to bypass intended access restrictions and execute SNMP queries, related to "source/destination IP address confusion."
CVE-2008-6123 is a security vulnerability that . Impacting 4 products from net-snmp, from opensuse, from suse and 1 other, organizations running these solutions should prioritize assessment and patching.
Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.
2009-02-12T16:30:00.187
2026-06-16T23:01:39.597
Modified
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | net-snmp | net-snmp | ≤ 5.4.2.1 | Yes |
| Operating System | opensuse | opensuse | 10.3-11.1 | Yes |
| Operating System | opensuse | opensuse | 11.2 | Yes |
| Operating System | suse | linux_enterprise | 9-11 | Yes |
| Operating System | redhat | enterprise_linux | 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 net-snmp'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.