CVE-2006-0743 json
Apache log4net format string vulnerability causes DoS
published 2006-03-09 20 y ago modified 2026-06-16 4 mo ago also GHSA-f9fr-w54q-772h , EUVD-2022-3735
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.4%
- EPSS 6.4% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- nuget log4net 1.2.10
- log4net openSUSE Tumbleweed 1.2.10-75.6
opensuse advisories openSUSE-SU-2024:10072-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-24-226-02 updated cvss 5.3
Rockwell Automation AADvance Standalone OPC-DA Server
-
Rockwell Automation AADvance Standalone OPC-DA Server >=v2.01.510affected: fixed in v2.02, mitigation “Rockwell Automation has released product updates addressing these vulnerabilities:” rockwellautomation.custhelp.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
6.37% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | log4net | <1.2.10 |
1.2.10 |
Classification
- Weakness
-
- CWE-134 Use of Externally-Controlled Format String
References
-
secunia.com
/advisories/19241
third-party-advisory, patch, vendor-advisory
-
issues.apache.org
/jira/browse/LOG4NET-67
patch, vendor-advisory
-
github.com
/apache/logging-log4net/commit/ea3faab25fe5f1d4dbda9f5da8dcfa6fc3d9e1b8
web
-
novell.com
/linux/security/advisories/2006_26_sr.html
vendor-advisory
-
secunia.com
/advisories/22932
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2006/0955
vdb-entry, vendor-advisory
-
osvdb.org
/23905
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/25196
vdb-entry, web
-
securityfocus.com
/bid/17095
vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2006-0743
advisory
-
github.com
/apache/logging-log4net
package
-
web.archive.org
/web/20070114054835/http://www.novell.com/linux/security/advisories/2006_26_sr.html
web
-
web.archive.org
/web/20140304060609/https://issues.apache.org/jira/browse/LOG4NET-67
web
-
web.archive.org
/web/20200229022118/http://www.securityfocus.com/bid/17095
web
Sources
- CVE List CVE-2006-0743
- GitHub Advisory GHSA-f9fr-w54q-772h
- NVD CVE-2006-0743
Fencer Vulns 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.