How severe is CVE-2006-2369?

No CVSS score has been assigned to CVE-2006-2369 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2006-2369?

CVE-2006-2369 affects the following packages: vnc4 (Debian:10). Ecosystems affected: Debian:10.

How do I fix CVE-2006-2369?

Update vnc4 to version 4.1.1+X4.3.0-10 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is CVE-2006-2369 actively exploited in the wild?

Yes. There are 9 known exploit references for CVE-2006-2369, including 4 documented proof-of-concept exploits on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2006-2369?

CVE-2006-2369 has an EPSS (Exploit Prediction Scoring System) score of 92.3%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

When was CVE-2006-2369 published, and has it been updated?

CVE-2006-2369 was published on May 15, 2006 and was last updated on June 4, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

Withdrawn — this advisory has been retracted

📦 Debian:10

CVE-2006-2369

Published

May 15, 2006

Updated

Jun 4, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

9 known

EPSS Exploitation Probability

via FIRST.org ↗

92.3%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected

📦vnc4

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Debian:10 packages — download data is not available via public APIs for these ecosystems.

Description

RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, as originally demonstrated using a long password.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
📦Debian:10	`vnc4`	all versions	4.1.1+X4.3.0-10

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-1794remotemultiple✓ Verified

RealVNC 4.1.0 < 4.1.1 - VNC Null Authentication Bypass (Metasploit)

by H D Moore · May 15, 2006

Exploit-DB Source

EDB-1791remotemultiple✓ Verified

RealVNC 4.1.0 < 4.1.1 - VNC Null Authentication Bypass

by redsand · May 16, 2006

Exploit-DB Source

EDB-36932remotewindows✓ Verified

RealVNC 4.1.0/4.1.1 - Authentication Bypass

by fdiskyou · May 13, 2012

Exploit-DB Source

EDB-17719remotewindows✓ Verified

RealVNC - Authentication Bypass (Metasploit)

by Metasploit · Aug 26, 2011

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2006-2369 in your stack?

O3 detects CVE-2006-2369 across Debian:10 dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works