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CVE-2006-0743

17
FAUCET Score

CVE-2006-0743 describes a format string vulnerability in the LocalSyslogAppender component of Apache log4net version 1.2.9. This flaw could allow remote attackers to trigger a denial of service through memory corruption and application termination via unspecified vectors. With a CVSS score of 5.0, it is considered a medium-severity vulnerability, requiring no authentication and having a low attack complexity, but only impacting availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.9_betaCPE matchmatch criteria
cpe:2.3:a:apache:log4net:1.2.9_beta:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.22%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0622 is in the 90th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

nugetpatch availablevia ghsa
Product: log4netFixed in: 1.2.10

Vendor Advisories (2)

nugetGHSA-f9fr-w54q-772hmedium

Apache log4net format string vulnerability causes DoS

May 1, 2022
redhatCVE-2006-0743

CVE-2006-0743

References

issues.apache.org / jira/browse/LOG4NET-67
PatchVendor Advisory
secunia.com / advisories/19241
PatchVendor Advisory
secunia.com / advisories/22932
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/25196
novell.com / linux/security/advisories/2006_26_sr.html
osvdb.org / 23905
securityfocus.com / bid/17095
vupen.com / english/advisories/2006/0955
Vendor Advisory