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Vulnerability record · CVE-2008-0610 · published 6 February 2008

CVE-2008-0610: Ultravnc memory buffer overflow vulnerability

Ultravnc · Ultravnc

Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a modified size value.

9.3 CVSS 2.0 High EPSS 39% · top 1.5% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a modified size value.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://forum.ultravnc.info/viewtopic.php?t=11850
http://secunia.com/advisories/28747 PatchVendor Advisory
http://sourceforge.net/project/shownotes.php?release_id=571174&group_id=63887
http://ultravnc.svn.sourceforge.net/viewvc/ultravnc/UltraVNC%20Project%20Root/UltraVNC/vncviewer/ClientConnection.cpp?so
http://www.exploit-db.com/exploits/18666
http://www.kb.cert.org/vuls/id/721460 US Government Resource
http://www.securityfocus.com/bid/27561 ExploitPatch
http://www.securitytracker.com/id?1019293
http://www.vupen.com/english/advisories/2008/0392
http://forum.ultravnc.info/viewtopic.php?t=11850
http://secunia.com/advisories/28747 PatchVendor Advisory
http://sourceforge.net/project/shownotes.php?release_id=571174&group_id=63887
http://ultravnc.svn.sourceforge.net/viewvc/ultravnc/UltraVNC%20Project%20Root/UltraVNC/vncviewer/ClientConnection.cpp?so
http://www.exploit-db.com/exploits/18666
http://www.kb.cert.org/vuls/id/721460 US Government Resource
http://www.securityfocus.com/bid/27561 ExploitPatch
http://www.securitytracker.com/id?1019293
http://www.vupen.com/english/advisories/2008/0392

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2008-0610), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.