MEDIUM
Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite
Published May 3, 2002
5.0
MEDIUMCVSS 2.0
EPSS 33.35%
Description
Microsoft Exchange 5.5 2000 allows remote attackers to cause a denial of service (hang) via exceptional BER encodings for the LDAP filter type field, as demonstrated by the PROTOS LDAPv3 test suite.
Affected products
No data.
OR
- 5.5
- 2000
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.
33.35% 0.33349
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.33349
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 33.35% (0.33349) | 98.33th | v5 (v2026.06.15) |
| Aug 22, 2026 | 33.35% (0.33349) | 98.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 29.43% (0.29433) | 97.93th | v5 (v2026.06.15) |
| Dec 29, 2025 | 11.63% (0.11626) | 93.42th | v4 (v2025.03.14) |
| Dec 28, 2025 | 9.02% (0.09024) | 92.36th | v4 (v2025.03.14) |
| Dec 27, 2025 | 13.23% (0.13229) | 93.95th | v4 (v2025.03.14) |
| Nov 23, 2025 | 8.36% (0.08360) | 91.93th | v4 (v2025.03.14) |
| Oct 28, 2025 | 10.94% (0.10938) | 93.06th | v4 (v2025.03.14) |
| Oct 27, 2025 | 16.96% (0.16965) | 94.71th | v4 (v2025.03.14) |
| Oct 1, 2025 | 10.94% (0.10938) | 93.17th | v4 (v2025.03.14) |
| Jul 30, 2025 | 16.96% (0.16965) | 94.69th | v4 (v2025.03.14) |
| Mar 30, 2025 | 10.94% (0.10938) | 92.76th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.34% (0.12339) | 89.76th | v4 (v2025.03.14) |
| Mar 17, 2025 | 11.13% (0.11130) | 92.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.30% (0.03298) | 91.66th | v3 (v2023.03.01) |
| Apr 2, 2024 | 3.30% (0.03298) | 91.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.69% (0.02690) | 88.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 16.86% (0.16864) | 96.19th | v2 (v2022.01.01) |
| Apr 1, 2022 | 16.86% (0.16864) | 95.84th | v2 (v2022.01.01) |
| Feb 4, 2022 | 16.86% (0.16864) | 92.98th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (7)
- http://ciac.llnl.gov/ciac/bulletins/l-116.shtml third-party-advisorygovernment-resourcex_refsource_CIACPatchThird Party AdvisoryUS Government ResourceVendor Advisory
- http://www.cert.org/advisories/CA-2001-18.html third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
- http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/ x_refsource_MISCThird Party Advisory
- http://www.kb.cert.org/vuls/id/763400 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- http://www.kb.cert.org/vuls/id/CFCN-4YAQC7 x_refsource_CONFIRMThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/3045 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6899 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://ciac.llnl.gov/ciac/bulletins/l-116.shtml | third-party-advisorygovernment-resourcex_refsource_CIACPatchThird Party AdvisoryUS Government ResourceVendor Advisory | |
| http://www.cert.org/advisories/CA-2001-18.html | third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource | |
| http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/ | x_refsource_MISCThird Party Advisory | |
| http://www.kb.cert.org/vuls/id/763400 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource | |
| http://www.kb.cert.org/vuls/id/CFCN-4YAQC7 | x_refsource_CONFIRMThird Party AdvisoryUS Government Resource | |
| http://www.securityfocus.com/bid/3045 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/6899 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 3, 2002
Updated Aug 8, 2024
Reserved May 1, 2002
Link CVE-2001-1319
CISA Vulnrichment
Updated n/a