HIGH
cmd5checkpw 0.21 and earlier allows remote attackers to cause a denial of service via an "SMTP AUTH" command with an unknown username
Published Jan 22, 2001
7.5
HIGHCVSS 2.0
EPSS 1.59%
Description
cmd5checkpw 0.21 and earlier allows remote attackers to cause a denial of service via an "SMTP AUTH" command with an unknown username.
Affected products
No data.
OR
- 0.20
- 0.21
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.59% 0.01588
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01588
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.59% (0.01588) | 74.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.59% (0.01588) | 72.36th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.74% (0.00741) | 71.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.78% (0.00776) | 82.04th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.78% (0.00776) | 80.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.78% (0.00776) | 78.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (4)
- http://archives.neohapsis.com/archives/bugtraq/2000-10/0258.html mailing-listx_refsource_BUGTRAQVendor Advisory
- http://members.elysium.pl/brush/cmd5checkpw/changes.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/1809 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5382 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2000-10/0258.html | mailing-listx_refsource_BUGTRAQVendor Advisory | |
| http://members.elysium.pl/brush/cmd5checkpw/changes.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/1809 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/5382 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 22, 2001
Updated Aug 8, 2024
Reserved Nov 24, 2000
Link CVE-2000-0990
CISA Vulnrichment
Updated n/a