CVE-2006-1652
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer...
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
Exploit likelihood
What each source reports
NVD Score used
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
- Record
CVE-2006-1652- CVSS 2.0
- 9.0 High
AV:N/AC:L/Au:S/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
- Record
CVE-2006-1652- Updated
- 2026-11-02
EUVDEUVD-2006-1653 No score
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
- Record
EUVD-2006-1653- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m87x-468w-hp6j No score
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer...
Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
- Record
GHSA-m87x-468w-hp6j- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | UltraVNC 1.0.1 - Client Buffer Overflow (Metasploit) | 2010-04-30 |
| Exploit-DB | UltraVNC 1.0.1 - Multiple Remote Error Logging Buffer Overflow Vulnerabilities (1) | 2006-04-04 |
| Exploit-DB | UltraVNC 1.0.1 - Multiple Remote Error Logging Buffer Overflow Vulnerabilities (2) | 2006-04-04 |
| Metasploit | UltraVNC 1.0.1 Client Buffer Overflow | 2006-04-04 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-1652 is a high vulnerability (CVSS 9.0) in Ultravnc Tabbed Viewer, published April 6, 2006. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 68.0%, the 99th percentile. No source names a fixed version.
References
exploit-db.com/exploits/1642
exchange.xforce.ibmcloud.com/vulnerabilities/25648
secunia.com/advisories/19513
securityfocus.com/archive/1/430711/100/0/threaded
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vupen.com/english/advisories/2006/1240
securityreason.com/securityalert/674
lists.grok.org.uk/pipermail/full-disclosure/2006-April/044901.html
nvd.nist.gov/vuln/detail/CVE-2006-1652
github.com/advisories/GHSA-m87x-468w-hp6j