Vulnerability Report

CVE-2008-4770

RCE

Title: Realvnc RCE

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2008-4770.

CWE Category CWE-20

Published Date Jan 16, 2009

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 10.0 CVSS v2.0

Exploit Probability (EPSS)

4.05%

Vulnerability Summary

CVE-2008-4770: The CMsgReader::readRect function in the VNC Viewer component in RealVNC VNC Free Edition 4.0 through 4.1.2, Enterprise Edition E4.0 through E4.4.2, and Personal Edition P4.0 through P4.4.2 allows remote VNC servers to execute arbitrary code via crafted RFB protocol data, related to "encoding type."

Impacted Vendors

vnc 1

realvnc 1

Reference Links

http://secunia.com/advisories/32317 http://secunia.com/advisories/33689 http://secunia.com/advisories/34184 http://sunsolve.sun.com/search/document.do?assetkey=1-21-140455-01-1 http://sunsolve.sun.com/search/document.do?assetkey=1-26-248526-1 http://www.gentoo.org/security/en/glsa/glsa-200903-17.xml http://www.realvnc.com/pipermail/vnc-list/2008-November/059432.html http://www.realvnc.com/products/free/4.1/release-notes.html http://www.realvnc.com/products/upgrade.html http://www.redhat.com/support/errata/RHSA-2009-0261.html http://www.securityfocus.com/bid/31832 http://www.securityfocus.com/bid/33263 http://www.vupen.com/english/advisories/2008/2868 https://exchange.xforce.ibmcloud.com/vulnerabilities/45969 https://exchange.xforce.ibmcloud.com/vulnerabilities/47937 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9367 https://www.redhat.com/archives/fedora-package-announce/2009-January/msg01025.html http://secunia.com/advisories/32317 http://secunia.com/advisories/33689 http://secunia.com/advisories/34184 http://sunsolve.sun.com/search/document.do?assetkey=1-21-140455-01-1 http://sunsolve.sun.com/search/document.do?assetkey=1-26-248526-1 http://www.gentoo.org/security/en/glsa/glsa-200903-17.xml http://www.realvnc.com/pipermail/vnc-list/2008-November/059432.html http://www.realvnc.com/products/free/4.1/release-notes.html http://www.realvnc.com/products/upgrade.html http://www.redhat.com/support/errata/RHSA-2009-0261.html http://www.securityfocus.com/bid/31832 http://www.securityfocus.com/bid/33263 http://www.vupen.com/english/advisories/2008/2868 https://exchange.xforce.ibmcloud.com/vulnerabilities/45969 https://exchange.xforce.ibmcloud.com/vulnerabilities/47937 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9367 https://www.redhat.com/archives/fedora-package-announce/2009-January/msg01025.html

CVSS v2.0

Source Entity [email protected]

Severity HIGH

10.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2008-4770 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2025 MODIFIED

Vulnerability data or affected products updated.

January 16, 2009 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.