CVE-2008-4770

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-01-16 · updated 2026-06-16
Weakness: CWE-20

Description

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."

Affected products

Realvnc: 4.0, 4.1.2, 4.4.2, e4.0, p4.0, p4.4.2

References

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

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