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TI-2006-06723 Aliases CVE-2006-6981GHSA-4p33-4mmg-2qxr

3proxy 0.5 to 0.5.2, when NT-encoded passwords are being used, allows remote attackers to…

Priority LOW 26Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

3proxy 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 vectors related to NTLM authentication, which causes a password hash to be overwritten.

Why it matters now

EPSS 0.01313 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:3proxy:3proxy:0.5:*:*:*:*:*:*:*0.5Vulnerable3proxy
cpe:2.3:a:3proxy:3proxy:0.5.1:*:*:*:*:*:*:*0.5.1Vulnerable3proxy
cpe:2.3:a:3proxy:3proxy:0.5.2:*:*:*:*:*:*:*0.5.2Vulnerable3proxy
  • cpe:2.3:a:3proxy:3proxy:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·3proxy
  • cpe:2.3:a:3proxy:3proxy:0.5.1:*:*:*:*:*:*:* Versions 0.5.1 Vulnerable ·3proxy
  • cpe:2.3:a:3proxy:3proxy:0.5.2:*:*:*:*:*:*:* Versions 0.5.2 Vulnerable ·3proxy

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2006-6981
  2. 2026-10-03 Alias added: GHSA-4p33-4mmg-2qxr

References

Advisory 1

  • TI-2007-01953 Buffer overflow in the HTTP proxy service for 3proxy 0.5 to 0.5.3g, and 0.6b-devel before… CVSS 2.0HIGH 10.0
  • TI-2019-10808 webadmin.c in 3proxy before 0.8.13 has an out-of-bounds write in the admin interface. CVSS 3.1CRITICAL 9.8
  • TI-2007-05403 Double free vulnerability in the ftpprchild function in ftppr in 3proxy 0.5 through… CVSS 2.0MEDIUM 5.0
  • TI-2006-06724 3proxy 0.5 to 0.5.2 does not offer NTLM authentication before basic authentication, which… CVSS 2.0MEDIUM 5.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences