Buffer overflow in the base64 decoder in MERCUR Mailserver 4.2 before SP3a allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long (1) AUTH command to the POP3 server or (2) AUTHENTICATE command to the IMAP server
Published May 10, 2005
7.5
HIGHCVSS 2.0
EPSS 12.93%
Description
Buffer overflow in the base64 decoder in MERCUR Mailserver 4.2 before SP3a allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long (1) AUTH command to the POP3 server or (2) AUTHENTICATE command to the IMAP server.
Affected products
No data.
- 3.3
- 3.3_sp1
- 3.3_sp2
- 4.1
- 4.1_sp1
- 4.2
- 4.2_sp1
- 4.2_sp2
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:P/I:P/A:P
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.93% (0.12925) | 96.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.93% (0.12925) | 95.79th | v5 (v2026.06.15) |
| Mar 30, 2025 | 23.26% (0.23259) | 95.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 25.18% (0.25182) | 93.85th | v4 (v2025.03.14) |
| Mar 17, 2025 | 23.26% (0.23259) | 95.49th | v4 (v2025.03.14) |
| Dec 17, 2024 | 11.16% (0.11159) | 95.15th | v3 (v2023.03.01) |
| Apr 16, 2024 | 22.55% (0.22548) | 96.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 24.23% (0.24226) | 95.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 16.67% (0.16668) | 96.17th | v2 (v2022.01.01) |
| Apr 1, 2022 | 16.67% (0.16668) | 95.81th | v2 (v2022.01.01) |
| Feb 4, 2022 | 16.67% (0.16668) | 92.96th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html mailing-listx_refsource_FULLDISCExploit
- http://secunia.com/advisories/10038 third-party-advisoryx_refsource_SECUNIAPatch
- http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html x_refsource_CONFIRM
- http://www.osvdb.org/2688 vdb-entryx_refsource_OSVDB
- http://www.securiteam.com/windowsntfocus/6U00N1P8KC.html x_refsource_MISCExploit
- http://www.securityfocus.com/bid/8861 vdb-entryx_refsource_BIDExploit
- http://www.securityfocus.com/bid/8889 vdb-entryx_refsource_BIDExploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/13468 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html | mailing-listx_refsource_FULLDISCExploit | |
| http://secunia.com/advisories/10038 | third-party-advisoryx_refsource_SECUNIAPatch | |
| http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html | x_refsource_CONFIRM | |
| http://www.osvdb.org/2688 | vdb-entryx_refsource_OSVDB | |
| http://www.securiteam.com/windowsntfocus/6U00N1P8KC.html | x_refsource_MISCExploit | |
| http://www.securityfocus.com/bid/8861 | vdb-entryx_refsource_BIDExploit | |
| http://www.securityfocus.com/bid/8889 | vdb-entryx_refsource_BIDExploit | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/13468 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.