HIGH
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
Published Feb 6, 2008
9.3
HIGHCVSS 2.0
EPSS 38.76%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
9.3 HIGH NVD
AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
38.76% 0.38757
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.38757
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 38.76% (0.38757) | 98.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 38.76% (0.38757) | 98.39th | v5 (v2026.06.15) |
| Mar 30, 2025 | 74.83% (0.74834) | 98.79th | v4 (v2025.03.14) |
| Mar 29, 2025 | 78.50% (0.78495) | 98.75th | v4 (v2025.03.14) |
| Mar 28, 2025 | 74.83% (0.74834) | 98.79th | v4 (v2025.03.14) |
| Mar 17, 2025 | 72.94% (0.72941) | 98.70th | v4 (v2025.03.14) |
| Dec 17, 2024 | 93.34% (0.93336) | 99.30th | v3 (v2023.03.01) |
| Dec 10, 2024 | 36.02% (0.36024) | 97.28th | v3 (v2023.03.01) |
| Nov 2, 2024 | 33.01% (0.33009) | 97.14th | v3 (v2023.03.01) |
| Sep 25, 2024 | 31.83% (0.31829) | 97.06th | v3 (v2023.03.01) |
| Aug 18, 2024 | 29.52% (0.29516) | 96.99th | v3 (v2023.03.01) |
| Jul 10, 2024 | 25.90% (0.25897) | 96.76th | v3 (v2023.03.01) |
| Feb 12, 2024 | 30.80% (0.30800) | 96.80th | v3 (v2023.03.01) |
| Jan 7, 2024 | 32.00% (0.32003) | 96.58th | v3 (v2023.03.01) |
| Dec 3, 2023 | 35.50% (0.35499) | 96.71th | v3 (v2023.03.01) |
| Sep 22, 2023 | 38.06% (0.38062) | 96.75th | v3 (v2023.03.01) |
| Jul 12, 2023 | 39.30% (0.39299) | 96.73th | v3 (v2023.03.01) |
| Jun 5, 2023 | 33.52% (0.33523) | 96.44th | v3 (v2023.03.01) |
| May 2, 2023 | 40.73% (0.40728) | 96.72th | v3 (v2023.03.01) |
| Mar 28, 2023 | 33.27% (0.33274) | 96.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 35.35% (0.35353) | 96.41th | v3 (v2023.03.01) |
| Mar 6, 2023 | 66.56% (0.66559) | 99.06th | v2 (v2022.01.01) |
| Feb 4, 2022 | 66.56% (0.66559) | 98.83th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://forum.ultravnc.info/viewtopic.php?t=11850 x_refsource_CONFIRM
- http://secunia.com/advisories/28747 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://sourceforge.net/project/shownotes.php?release_id=571174&group_id=63887 x_refsource_CONFIRM
- http://ultravnc.svn.sourceforge.net/viewvc/ultravnc/UltraVNC%20Project%20Root/UltraVNC/vncviewer/ClientConnection.cpp?sortby=date&r1=169&r2=168&pathrev=169 x_refsource_CONFIRM
- http://www.exploit-db.com/exploits/18666 exploitx_refsource_EXPLOIT-DB
- http://www.kb.cert.org/vuls/id/721460 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.securityfocus.com/bid/27561 vdb-entryx_refsource_BIDExploitPatch
- http://www.securitytracker.com/id?1019293 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2008/0392 vdb-entryx_refsource_VUPEN
| Link | Providers | Tags |
|---|---|---|
| http://forum.ultravnc.info/viewtopic.php?t=11850 | x_refsource_CONFIRM | |
| http://secunia.com/advisories/28747 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://sourceforge.net/project/shownotes.php?release_id=571174&group_id=63887 | x_refsource_CONFIRM | |
| http://ultravnc.svn.sourceforge.net/viewvc/ultravnc/UltraVNC%20Project%20Root/UltraVNC/vncviewer/ClientConnection.cpp?sortby=date&r1=169&r2=168&pathrev=169 | x_refsource_CONFIRM | |
| http://www.exploit-db.com/exploits/18666 | exploitx_refsource_EXPLOIT-DB | |
| http://www.kb.cert.org/vuls/id/721460 | third-party-advisoryx_refsource_CERT-VNUS Government Resource | |
| http://www.securityfocus.com/bid/27561 | vdb-entryx_refsource_BIDExploitPatch | |
| http://www.securitytracker.com/id?1019293 | vdb-entryx_refsource_SECTRACK | |
| http://www.vupen.com/english/advisories/2008/0392 | vdb-entryx_refsource_VUPEN |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 6, 2008
Updated Aug 7, 2024
Reserved Feb 5, 2008
Link CVE-2008-0610
CISA Vulnrichment
Updated n/a