Chicken of the VNC (cotv) 2.0 allows remote attackers to cause a denial of service (application crash) via a large computer-name size value in a ServerInit packet, which triggers a failed malloc and a resulting NULL dereference
Published Feb 6, 2007
7.8
HIGHCVSS 2.0
EPSS 4.42%
Description
Chicken of the VNC (cotv) 2.0 allows remote attackers to cause a denial of service (application crash) via a large computer-name size value in a ServerInit packet, which triggers a failed malloc and a resulting NULL dereference.
Affected products
No data.
- 2.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.42% (0.04425) | 91.06th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.29% (0.04289) | 89.81th | v5 (v2026.06.15) |
| Sep 29, 2025 | 10.33% (0.10326) | 92.92th | v4 (v2025.03.14) |
| Jul 26, 2025 | 11.79% (0.11791) | 93.38th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.68% (0.08682) | 91.64th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.38% (0.07380) | 85.90th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.68% (0.08682) | 91.82th | v4 (v2025.03.14) |
| Dec 12, 2024 | 19.45% (0.19447) | 96.48th | v3 (v2023.03.01) |
| Dec 10, 2023 | 19.45% (0.19447) | 95.79th | v3 (v2023.03.01) |
| Nov 2, 2023 | 17.50% (0.17499) | 95.54th | v3 (v2023.03.01) |
| Sep 25, 2023 | 17.98% (0.17978) | 95.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 18.30% (0.18303) | 95.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.79% (0.06790) | 91.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.79% (0.06790) | 79.54th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://osvdb.org/33637 vdb-entryx_refsource_OSVDB
- http://securityreason.com/securityalert/2220 third-party-advisoryx_refsource_SREASON
- http://www.securityfocus.com/archive/1/458907/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/466966/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/22372 vdb-entryx_refsource_BIDExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/32166 vdb-entryx_refsource_XF
- https://www.exploit-db.com/exploits/3257 exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/33637 | vdb-entryx_refsource_OSVDB | |
| http://securityreason.com/securityalert/2220 | third-party-advisoryx_refsource_SREASON | |
| http://www.securityfocus.com/archive/1/458907/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/archive/1/466966/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/22372 | vdb-entryx_refsource_BIDExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/32166 | vdb-entryx_refsource_XF | |
| https://www.exploit-db.com/exploits/3257 | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.