Buffer overflow in the SSLv2 support in Zeus Web Server before 4.3r5 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a long string in an invalid Client Hello message
Published Jan 20, 2010
10.0
HIGHCVSS 2.0
EPSS 19.98%
Description
Buffer overflow in the SSLv2 support in Zeus Web Server before 4.3r5 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a long string in an invalid Client Hello message.
Affected products
No data.
- 4.3r5
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:C/I:C/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 1, 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 (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 19.98% (0.19979) | 97.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 19.47% (0.19473) | 97.01th | v5 (v2026.06.15) |
| Jan 29, 2026 | 39.62% (0.39616) | 97.19th | v4 (v2025.03.14) |
| Dec 5, 2025 | 44.44% (0.44441) | 97.40th | v4 (v2025.03.14) |
| Mar 30, 2025 | 38.04% (0.38043) | 96.91th | v4 (v2025.03.14) |
| Mar 29, 2025 | 25.18% (0.25178) | 93.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 38.04% (0.38043) | 96.87th | v4 (v2025.03.14) |
| Dec 12, 2024 | 60.63% (0.60630) | 97.91th | v3 (v2023.03.01) |
| Nov 19, 2024 | 60.63% (0.60630) | 97.89th | v3 (v2023.03.01) |
| Sep 17, 2024 | 67.35% (0.67349) | 97.99th | v3 (v2023.03.01) |
| Jul 22, 2024 | 39.30% (0.39295) | 97.29th | v3 (v2023.03.01) |
| Jul 7, 2024 | 35.87% (0.35869) | 97.18th | v3 (v2023.03.01) |
| May 24, 2024 | 28.80% (0.28798) | 96.86th | v3 (v2023.03.01) |
| May 10, 2024 | 19.38% (0.19377) | 96.26th | v3 (v2023.03.01) |
| Apr 25, 2024 | 16.95% (0.16946) | 95.99th | v3 (v2023.03.01) |
| Apr 12, 2024 | 15.89% (0.15887) | 95.85th | v3 (v2023.03.01) |
| Mar 28, 2024 | 11.88% (0.11877) | 95.20th | v3 (v2023.03.01) |
| Mar 15, 2024 | 10.76% (0.10765) | 94.94th | v3 (v2023.03.01) |
| Feb 8, 2024 | 10.39% (0.10392) | 94.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 74.75% (0.74749) | 97.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 35.20% (0.35205) | 97.82th | v2 (v2022.01.01) |
| Feb 4, 2022 | 35.20% (0.35205) | 96.79th | v2 (v2022.01.01) |
References (9)
- http://intevydis.blogspot.com/2010/01/zeus-web-server-ssl2clienthello.html x_refsource_MISCExploit
- http://intevydis.com/vd-list.shtml x_refsource_MISC
- http://secunia.com/advisories/38056 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securitytracker.com/id?1023465 vdb-entryx_refsource_SECTRACK
- http://support.zeus.com/zws/media/docs/4.3/RELEASE_NOTES x_refsource_CONFIRMVendor Advisory
- http://support.zeus.com/zws/news/2010/01/13/zws_4_3r5_released x_refsource_CONFIRM
- http://www.osvdb.org/61699 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/37829 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2010/0147 vdb-entryx_refsource_VUPENVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://intevydis.blogspot.com/2010/01/zeus-web-server-ssl2clienthello.html | x_refsource_MISCExploit | |
| http://intevydis.com/vd-list.shtml | x_refsource_MISC | |
| http://secunia.com/advisories/38056 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://securitytracker.com/id?1023465 | vdb-entryx_refsource_SECTRACK | |
| http://support.zeus.com/zws/media/docs/4.3/RELEASE_NOTES | x_refsource_CONFIRMVendor Advisory | |
| http://support.zeus.com/zws/news/2010/01/13/zws_4_3r5_released | x_refsource_CONFIRM | |
| http://www.osvdb.org/61699 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/37829 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2010/0147 | vdb-entryx_refsource_VUPENVendor Advisory |
Change history (0)
No recorded changes yet.