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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…
Medium6.8EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (4)
- GLSA-201006-21 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [oss-security] 20100614 Re: CVE request: UnrealIRCd 3.2.8.1 source code contained a backdoor allowing for remote command execution (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 42077 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-4893)Record last updated .