MEDIUM
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
Published Mar 9, 2006
5.0
MEDIUMCVSS 2.0
EPSS 6.37%
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.
Affected products
Remediation
Red Hat statement
Not vulnerable. Red Hat Enterprise Linux 2.1, 3, and 4 do not include log4net.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.37% 0.06371
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06371
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.37% (0.06371) | 93.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.22% (0.06225) | 92.61th | v5 (v2026.06.15) |
| Sep 23, 2025 | 4.35% (0.04353) | 88.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.49% (0.01489) | 79.77th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.77% (0.00773) | 81.11th | v3 (v2023.03.01) |
| Aug 2, 2023 | 2.41% (0.02412) | 88.49th | v3 (v2023.03.01) |
| May 5, 2023 | 1.71% (0.01715) | 85.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.37% (0.01374) | 84.20th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.21% (0.02210) | 81.16th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.21% (0.02210) | 79.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.21% (0.02210) | 58.05th | v2 (v2022.01.01) |
Weaknesses (1)
References (16)
- http://issues.apache.org/jira/browse/LOG4NET-67 x_refsource_CONFIRMPatchVendor Advisory
- http://secunia.com/advisories/19241 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/22932 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.novell.com/linux/security/advisories/2006_26_sr.html vendor-advisoryx_refsource_SUSE
- http://www.osvdb.org/23905 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/17095 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/0955 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2006-0743 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/25196 vdb-entryx_refsource_XF
- https://github.com/advisories/GHSA-f9fr-w54q-772h Advisory
- https://github.com/apache/logging-log4net/commit/ea3faab25fe5f1d4dbda9f5da8dcfa6fc3d9e1b8
- https://nvd.nist.gov/vuln/detail/CVE-2006-0743
- https://web.archive.org/web/20070114054835/http://www.novell.com/linux/security/advisories/2006_26_sr.html
- https://web.archive.org/web/20140304060609/https://issues.apache.org/jira/browse/LOG4NET-67
- https://web.archive.org/web/20200229022118/http://www.securityfocus.com/bid/17095
- https://www.cve.org/CVERecord?id=CVE-2006-0743
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Mar 9, 2006
Updated Aug 7, 2024
Reserved Feb 17, 2006
Link CVE-2006-0743
CISA Vulnrichment
GHSA-F9FR-W54Q-772H Updated n/a