MEDIUM
Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e
Published Jan 4, 2000
5.0
MEDIUMCVSS 2.0
EPSS 26.10%
Description
Microsoft Exchange 5.5 allows a remote attacker to relay email (i.e. spam) using encapsulated SMTP addresses, even if the anti-relaying features are enabled.
Affected products
No data.
OR
- 5.5
- 5.5
- 5.5
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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
26.10% 0.26099
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.26099
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 (43 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 26.10% (0.26099) | 97.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 26.10% (0.26099) | 97.72th | v5 (v2026.06.15) |
| Apr 12, 2026 | 14.38% (0.14379) | 94.42th | v4 (v2025.03.14) |
| Mar 9, 2026 | 18.36% (0.18355) | 95.11th | v4 (v2025.03.14) |
| Mar 4, 2026 | 14.38% (0.14379) | 94.27th | v4 (v2025.03.14) |
| Mar 1, 2026 | 11.86% (0.11863) | 93.62th | v4 (v2025.03.14) |
| Feb 18, 2026 | 14.38% (0.14379) | 94.25th | v4 (v2025.03.14) |
| Feb 4, 2026 | 18.36% (0.18355) | 95.04th | v4 (v2025.03.14) |
| Feb 1, 2026 | 15.30% (0.15297) | 94.47th | v4 (v2025.03.14) |
| Jan 4, 2026 | 18.36% (0.18355) | 95.00th | v4 (v2025.03.14) |
| Jan 1, 2026 | 15.30% (0.15297) | 94.45th | v4 (v2025.03.14) |
| Dec 18, 2025 | 18.36% (0.18355) | 94.99th | v4 (v2025.03.14) |
| Dec 4, 2025 | 23.07% (0.23070) | 95.70th | v4 (v2025.03.14) |
| Dec 1, 2025 | 19.46% (0.19456) | 95.20th | v4 (v2025.03.14) |
| Nov 14, 2025 | 23.07% (0.23070) | 95.69th | v4 (v2025.03.14) |
| Nov 4, 2025 | 18.36% (0.18355) | 94.94th | v4 (v2025.03.14) |
| Nov 1, 2025 | 15.30% (0.15297) | 94.37th | v4 (v2025.03.14) |
| Oct 4, 2025 | 18.36% (0.18355) | 94.97th | v4 (v2025.03.14) |
| Oct 1, 2025 | 15.30% (0.15297) | 94.42th | v4 (v2025.03.14) |
| Sep 4, 2025 | 18.36% (0.18355) | 94.98th | v4 (v2025.03.14) |
| Sep 1, 2025 | 15.30% (0.15297) | 94.40th | v4 (v2025.03.14) |
| Aug 5, 2025 | 18.36% (0.18355) | 94.95th | v4 (v2025.03.14) |
| Aug 1, 2025 | 15.30% (0.15297) | 94.37th | v4 (v2025.03.14) |
| Jul 4, 2025 | 18.36% (0.18355) | 94.92th | v4 (v2025.03.14) |
| Jul 1, 2025 | 15.30% (0.15297) | 94.33th | v4 (v2025.03.14) |
| Jun 4, 2025 | 18.36% (0.18355) | 94.87th | v4 (v2025.03.14) |
| Jun 1, 2025 | 15.30% (0.15297) | 94.29th | v4 (v2025.03.14) |
| May 14, 2025 | 18.36% (0.18355) | 94.85th | v4 (v2025.03.14) |
| May 13, 2025 | 15.30% (0.15297) | 94.23th | v4 (v2025.03.14) |
| May 4, 2025 | 18.36% (0.18355) | 94.84th | v4 (v2025.03.14) |
| May 1, 2025 | 15.30% (0.15297) | 94.26th | v4 (v2025.03.14) |
| Apr 11, 2025 | 18.36% (0.18355) | 94.72th | v4 (v2025.03.14) |
| Apr 10, 2025 | 15.30% (0.15297) | 94.08th | v4 (v2025.03.14) |
| Mar 30, 2025 | 18.36% (0.18355) | 94.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 23.51% (0.23510) | 93.53th | v4 (v2025.03.14) |
| Mar 18, 2025 | 18.36% (0.18355) | 94.77th | v4 (v2025.03.14) |
| Mar 17, 2025 | 15.30% (0.15297) | 94.11th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.71% (0.02705) | 90.18th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.79% (0.00787) | 80.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.94% (0.00942) | 80.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 13.11% (0.13105) | 95.68th | v2 (v2022.01.01) |
| Apr 1, 2022 | 13.11% (0.13105) | 95.31th | v2 (v2022.01.01) |
| Feb 4, 2022 | 13.11% (0.13105) | 90.51th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (4)
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ237927 vendor-advisoryx_refsource_MSKB
- http://www.ciac.org/ciac/bulletins/j-056.shtml third-party-advisorygovernment-resourcex_refsource_CIACBroken Link
- http://www.securityfocus.com/bid/567 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-027 vendor-advisoryx_refsource_MSPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ237927 | vendor-advisoryx_refsource_MSKB | |
| http://www.ciac.org/ciac/bulletins/j-056.shtml | third-party-advisorygovernment-resourcex_refsource_CIACBroken Link | |
| http://www.securityfocus.com/bid/567 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-027 | vendor-advisoryx_refsource_MSPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 4, 2000
Updated Aug 1, 2024
Reserved Nov 25, 1999
Link CVE-1999-0682
CISA Vulnrichment
Updated n/a