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CVE-2006-1652
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…
High9.0EPSS 68.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 68.0% · top 0.7% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.0.
Weakness
Affected products
n/a
- affected n/a
References (12)
- 1642 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- untr@vnc-error-bo(25648) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1643 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- ultr@vnc-vnclogreallyprint-bo(25650) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 19513 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20060411 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer POC (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20060405 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer and server (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ADV-2006-1240 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 674 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- 20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 17378 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2006-1652)Record last updated .