CVE-2018-8581 (GCVE-0-2018-8581)

Vulnerability from cvelistv5 – Published: 2018-11-14 01:00 – Updated: 2025-10-21 23:45
VLAI CISA KEV KEVintel KEV
Summary
An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft Exchange Server Affected: 2010
Affected: 2013
Affected: 2016
Affected: 2019
Create a notification for this product.
Date Public
2018-11-13 00:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: bf15321b-5a62-4e7f-956a-c89120bfe590

Vulnerability ID: CVE-2018-8581

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEV entry: Microsoft Exchange Server Privilege Escalation Vulnerability | Affected: Microsoft / Exchange Server | Description: A privilege escalation vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could attempt to impersonate any other user of the Exchange server. | Required action: Apply updates per vendor instructions. | Due date: 2022-03-17 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-8581
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes
Feed CISA Known Exploited Vulnerabilities Catalog
Product Exchange Server
Due Date 2022-03-17
Date Added 2022-03-03
Vendorproject Microsoft
Vulnerabilityname Microsoft Exchange Server Privilege Escalation Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1c87778e-dd42-4e9e-ab4b-ce5ee4a53433

Vulnerability ID: CVE-2018-8581

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEVIntel entry: An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability."... | Affected: Microsoft / Microsoft Exchange Server | CVSS: 7.4 (HIGH) | Used in malware: yes | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability."...
Vendor Microsoft
Product Microsoft Exchange Server
Added Date 2022-03-03T00:00:00.000Z
Cvss Score 7.4
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:47 UTC | Updated: 2026-06-19 12:47 UTC
Show details on NVD website
To clipboard 

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}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.