CVE-2009-4893 json
Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial o…
published 16y ago modified 4mo ago also EUVD-2009-4856
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
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.
Is CVE-2009-4893 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
2.51% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
security.gentoo.org
/glsa/glsa-201006-21.xml
vendor-advisory
-
unrealircd.com
/txt/unrealsecadvisory.20090413.txt
vendor-advisory
-
openwall.com
/lists/oss-security/2010/06/14/13
mailing-list
-
securityfocus.com
/bid/42077
vdb-entry
Sources
- CVE List CVE-2009-4893
- NVD CVE-2009-4893
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.