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CVE-2006-0743
Format string vulnerability in LocalSyslogAppender in Apache log4net 1.2.9 might allow remote attackers to cause a denial of service…
- 5.0MediumCVSS base score
- 6.4%Exploitation in 30 daysEPSS · top 6.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Format string vulnerability in LocalSyslogAppender in Apache log4net 1.2.9 might allow remote attackers to cause a denial of service (memory corruption and termination) via unknown vectors.
Timeline
ID reserved
By redhat
- 20 days later
· 20 days later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 6.4% · top 6.3% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetlog4netGHSA-f9fr-w54q-772h (opens in a new tab)
References
8
- 22932 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2006-0955 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 19241 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SR:2006:026 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://issues.apache.org/jira/browse/LOG4NET-67 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 23905 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- log4net-localsyslogappender-dos(25196) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 17095 (opens in a new tab)vdb-entryx_refsource_BIDx_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)
- EUVD EUVD-2022-3735 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-f9fr-w54q-772h (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-0743)Record last updated .