CVE-2006-5740

CVE-2006-5740 is a medium-severity vulnerability in Wireshark with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 2% (79th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Wireshark
• Published: 2006-10-27
• Last modified: 2026-06-16

Description

Unspecified vulnerability in the LDAP dissector in Wireshark (formerly Ethereal) 0.99.3 allows remote attackers to cause a denial of service (crash) via a crafted LDAP packet.

Frequently asked questions

What is CVE-2006-5740?

Unspecified vulnerability in the LDAP dissector in Wireshark (formerly Ethereal) 0.99.3 allows remote attackers to cause a denial of service (crash) via a crafted LDAP packet.

How severe is CVE-2006-5740?

CVE-2006-5740 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-5740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-5740?

CVE-2006-5740 affects Wireshark. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-5740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-5740 published?

CVE-2006-5740 was published on 2006-10-27 and last updated on 2026-06-16.

References

• ftp://patches.sgi.com/support/free/security/advisories/20061101-01-P
• http://secunia.com/advisories/22590
• http://secunia.com/advisories/22672
• http://secunia.com/advisories/22692
• http://secunia.com/advisories/22797
• http://secunia.com/advisories/22841
• http://secunia.com/advisories/22929
• http://secunia.com/advisories/23096
• http://securitytracker.com/alerts/2006/Oct/1017129.html
• http://support.avaya.com/elmodocs2/security/ASA-2006-255.htm
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:195
• http://www.novell.com/linux/security/advisories/2006_65_ethereal.html
• http://www.redhat.com/support/errata/RHSA-2006-0726.html
• http://www.securityfocus.com/archive/1/450307/100/0/threaded
• http://www.securityfocus.com/bid/20762
• http://www.vupen.com/english/advisories/2006/4220
• http://www.wireshark.org/security/wnpa-sec-2006-03.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/29841
• https://issues.rpath.com/browse/RPL-746
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14679
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9482

Affected products (1)

• cpe:2.3:a:wireshark:wireshark:0.99.3:*:*:*:*:*:*:*

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