CVE-2009-4893
UnknownEPSS 2.51%
Last modified
CVE-2009-4893 is a vulnerability of currently unknown severity. Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.. EPSS estimates a 2.51% chance of exploitation in the next 30 days.
Description
Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Unrealircd | Unrealircd | 3.2 | Beta11 |
| Unrealircd | Unrealircd | 3.2.1 | — |
| Unrealircd | Unrealircd | 3.2.2 | — |
| Unrealircd | Unrealircd | 3.2.3 | — |
| Unrealircd | Unrealircd | 3.2.4 | — |
| Unrealircd | Unrealircd | 3.2.5 | — |
| Unrealircd | Unrealircd | 3.2.6 | — |
| Unrealircd | Unrealircd | 3.2.7 | — |
| Unrealircd | Unrealircd | 3.2.8 | — |
References
- http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txtVendor Advisory
- http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txtVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2009-4893?
Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.
How severe is CVE-2009-4893?
Severity scoring for CVE-2009-4893 is pending analysis. The EPSS model estimates a 2.51% probability of exploitation in the next 30 days.
How do I fix CVE-2009-4893?
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-2009-4893?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST