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Vulnerability record · CVE-2006-6982 · published 8 February 2007

CVE-2006-6982: 3proxy vulnerability

3proxy · 3proxy

3proxy 0.5 to 0.5.2 does not offer NTLM authentication before basic authentication, which might cause browsers with incomplete RFC2616/RFC2617 support to use basic cleartext authentication even if NTLM is available, which makes it easier for attackers to steal credentials.

5.0 CVSS 2.0 Medium EPSS 1.00% · top 38.7%
5.0CVSS 2.0 base score
1.00%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

3proxy 0.5 to 0.5.2 does not offer NTLM authentication before basic authentication, which might cause browsers with incomplete RFC2616/RFC2617 support to use basic cleartext authentication even if NTLM is available, which makes it easier for attackers to steal credentials.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://3proxy.ru/0.5.3g/Changelog.txt Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/38205
http://3proxy.ru/0.5.3g/Changelog.txt Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/38205

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2007-20313proxy vulnerabilityBuffer overflow in the HTTP proxy service for 3proxy 0.5 to 0.5.3g, and 0.6b-devel before 20070413, might allow remote attackers to execute arbitrary…EPSS 15%9.8CVE-2019-144953proxy out-of-bounds write vulnerabilitywebadmin.c in 3proxy before 0.8.13 has an out-of-bounds write in the admin interface.EPSS 1.9%5.0CVE-2007-56223proxy vulnerabilityDouble free vulnerability in the ftpprchild function in ftppr in 3proxy 0.5 through 0.5.3i allows remote attackers to cause a denial of service (daem…EPSS 2.1%5.0CVE-2006-69813proxy vulnerability3proxy 0.5 to 0.5.2, when NT-encoded passwords are being used, allows remote attackers to cause a denial of service (blocked account) via unspecified…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2006-6982), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.