Outlook Web Access (OWA) in Microsoft Exchange 5.5, SP4 and earlier, allows remote attackers to identify valid user email addresses by directly accessing a back-end function that processes the global address list (GAL)
Published Mar 9, 2002
5.0
MEDIUMCVSS 2.0
EPSS 21.99%
Description
Outlook Web Access (OWA) in Microsoft Exchange 5.5, SP4 and earlier, allows remote attackers to identify valid user email addresses by directly accessing a back-end function that processes the global address list (GAL).
Affected products
No data.
- ≤ 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.
AV:N/AC:L/Au:N/C:P/I:N/A:N
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 21.99% (0.21990) | 97.59th | v5 (v2026.06.15) |
| Jun 28, 2026 | 21.99% (0.21990) | 97.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 18.13% (0.18130) | 96.83th | v5 (v2026.06.15) |
| Mar 30, 2025 | 19.55% (0.19550) | 94.93th | v4 (v2025.03.14) |
| Mar 29, 2025 | 22.86% (0.22857) | 93.36th | v4 (v2025.03.14) |
| Mar 19, 2025 | 19.55% (0.19550) | 94.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 24.46% (0.24461) | 95.65th | v4 (v2025.03.14) |
| Dec 17, 2024 | 39.09% (0.39089) | 97.27th | v3 (v2023.03.01) |
| Dec 12, 2024 | 1.52% (0.01517) | 87.53th | v3 (v2023.03.01) |
| Jul 18, 2023 | 1.52% (0.01517) | 85.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.16% (0.01161) | 82.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 13.53% (0.13525) | 95.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 13.53% (0.13525) | 95.40th | v2 (v2022.01.01) |
| Feb 4, 2022 | 13.53% (0.13525) | 90.66th | v2 (v2022.01.01) |
No CWE recorded.
References (4)
- http://support.microsoft.com/support/kb/articles/Q307/1/95.ASP vendor-advisoryx_refsource_MSKBPatchVendor Advisory
- http://www.securityfocus.com/bid/3301 vdb-entryx_refsource_BID
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-047 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7089 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://support.microsoft.com/support/kb/articles/Q307/1/95.ASP | vendor-advisoryx_refsource_MSKBPatchVendor Advisory | |
| http://www.securityfocus.com/bid/3301 | vdb-entryx_refsource_BID | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-047 | vendor-advisoryx_refsource_MS | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/7089 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.