Microsoft Exchange Server up to 2019 CU7 privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Exchange Server 2013 CU23/2016 CU17/2016 CU18/2019 CU6/2019 CU7 and classified as critical. This vulnerability affects unknown code. The manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2020-17117. The attack is possible to be carried out remotely. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Microsoft Exchange Server 2013 CU23/2016 CU17/2016 CU18/2019 CU6/2019 CU7 (Groupware Software). It has been rated as critical. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 12/08/2020 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2020-17117. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.6
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 6.6
Vendor Vector (Microsoft): 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CNA Base Score: 6.6
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

08/04/2020 🔍
12/08/2020 +126 days 🔍
12/08/2020 +0 days 🔍
12/09/2020 +0 days 🔍
08/29/2025 +1723 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed

CVE: CVE-2020-17117 (🔍)
GCVE (CVE): GCVE-0-2020-17117
GCVE (VulDB): GCVE-100-165707

Entryinfo

Created: 12/09/2020 01:40
Updated: 08/29/2025 01:52
Changes: 12/09/2020 01:40 (34), 12/09/2020 01:44 (18), 12/13/2020 13:26 (2), 12/13/2020 13:32 (18), 03/16/2023 09:37 (3), 08/29/2025 01:52 (26)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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