01 Record
CVE-2020-17085
Microsoft Exchange Server Denial of Service Vulnerability
MediumPUBLISHEDCNA: microsoft
CNA base score6.2 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
02 Description
Microsoft Exchange Server Denial of Service Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 3.63% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.0% of scored records. A rank, not a probability.
- NVD base score
- 6.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-11-11 06:48Z5 YR AGO
- Last updated
- 2024-11-15 16:10Z1 YR AGO
- Reserved
- 2020-08-04
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.2)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 22fade10387c7d4e9ba1e3285a51fc6e76de61bb6350c815c13b1d49dea216ed
05 Affected products
VendorProductVersionsPlatforms
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 615.02.0 to < publicationx64-based Systems
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 1715.01.0 to < publicationx64-based Systems
MicrosoftMicrosoft Exchange Server 2019 Cumulative Update 715.02.0 to < publicationx64-based Systems
MicrosoftMicrosoft Exchange Server 2016 Cumulative Update 1815.01.0 to < publicationx64-based Systems
MicrosoftMicrosoft Exchange Server 2013 Cumulative Update 2315.00.0 to < publicationx64-based Systems
06 References
- portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17085