CVE-2018-18066
HIGHCVSS 7.5/10EPSS 4.30%
Last modified
CVE-2018-18066 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.. EPSS estimates a 4.30% chance of exploitation in the next 30 days.
Description
snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Net-Snmp | Net-Snmp | < 5.8 |
| Netapp | Cloud Backup | All versions |
| Netapp | Hyper Converged Infrastructure | All versions |
| Netapp | Storagegrid Webscale | All versions |
| Netapp | Data Ontap | All versions |
| Netapp | E-Series Santricity Os Controller | >= 11.0, <= 11.5 |
| Netapp | Solidfire Element Os | All versions |
References
- https://dumpco.re/blog/net-snmp-5.7.3-remote-dosExploit, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20181107-0001/Third Party Advisory
- https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/Patch, Third Party Advisory
- https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/Patch, Third Party Advisory
- https://dumpco.re/blog/net-snmp-5.7.3-remote-dosExploit, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20181107-0001/Third Party Advisory
- https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/Patch, Third Party Advisory
- https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-18066?
snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
How severe is CVE-2018-18066?
CVE-2018-18066 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.30% probability of exploitation in the next 30 days.
How do I fix CVE-2018-18066?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-18066?
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Scan your code nowSource: NVD / NIST