CVE-2008-0610
CVE-2008-0610 is a critical-severity vulnerability in Ultravnc with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 39% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 39% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Ultravnc
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2008-0610?
- 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.
- How severe is CVE-2008-0610?
- CVE-2008-0610 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2008-0610 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 39% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-0610?
- CVE-2008-0610 primarily affects Ultravnc. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2008-0610?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2008-0610 published?
- CVE-2008-0610 was published on 2008-02-06 and last updated on 2026-06-16.
References
- http://forum.ultravnc.info/viewtopic.php?t=11850
- http://secunia.com/advisories/28747
- 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?sortby=date&r1=169&r2=168&pathrev=169
- http://www.exploit-db.com/exploits/18666
- http://www.kb.cert.org/vuls/id/721460
- http://www.securityfocus.com/bid/27561
- http://www.securitytracker.com/id?1019293
- http://www.vupen.com/english/advisories/2008/0392
Affected products (5)
- cpe:2.3:a:ultravnc:ultravnc:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:ultravnc:ultravnc:1.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:ultravnc:ultravnc:1.0.4_rc6:*:*:*:*:*:*:*
- cpe:2.3:a:ultravnc:ultravnc:1.0.4_rc7:*:*:*:*:*:*:*
- cpe:2.3:a:ultravnc:ultravnc:1.0.4_rc8:*:*:*:*:*:*:*
More vulnerabilities in Ultravnc
- CVE-2009-0388 — Critical (CVSS 10.0): Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remote VNC servers to…
- CVE-2006-2206 — Critical (CVSS 10.0): The MS-Logon authentication scheme in UltraVNC (aka Ultr@VNC) 1.0.1 uses weak encryption (XOR) for challenge/response,…
- CVE-2008-5001 — Critical (CVSS 9.3): Multiple stack-based buffer overflows in multiple functions in vncviewer/FileTransfer.cpp in vncviewer for UltraVNC…
- CVE-2010-5248 — Medium (CVSS 6.9): Untrusted search path vulnerability in UltraVNC 1.0.8.2 allows local users to gain privileges via a Trojan horse…
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- CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
- CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
- CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.