CVE-2022-41082 (GCVE-0-2022-41082)

Vulnerability from cvelistv5 – Published: 2022-10-03 00:00 – Updated: 2025-10-21 23:15
VLAI CISA Shadowserver KEVIntel
Title
Microsoft Exchange Server Remote Code Execution Vulnerability
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
Severity
8 (High)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • Remote Code Execution
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Date Public
2022-09-30 07:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c826e8f5-ae7b-4c34-b6ad-959463d28402

Vulnerability ID: CVE-2022-41082

Status: Confirmed

Status Updated: 2022-09-30 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-09-30
Asserted: 2022-09-30
Scope
Notes: KEV entry: Microsoft Exchange Server Remote Code Execution Vulnerability | Affected: Microsoft / Exchange Server | Description: Microsoft Exchange Server contains an unspecified vulnerability that allows for authenticated remote code execution. Dubbed "ProxyNotShell," this vulnerability is chainable with CVE-2022-41040 which allows for the remote code execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-10-21 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://msrc-blog.microsoft.com/2022/09/29/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/; https://nvd.nist.gov/vuln/detail/CVE-2022-41082
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-502
Feed CISA Known Exploited Vulnerabilities Catalog
Product Exchange Server
Due Date 2022-10-21
Date Added 2022-09-30
Vendorproject Microsoft
Vulnerabilityname Microsoft Exchange Server Remote Code Execution Vulnerability
Knownransomwarecampaignuse Known
References
Created: 2026-02-02 13:25 UTC | Updated: 2026-02-06 07:53 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e4c0fcc7-220e-4e6b-b212-68e62baec718

Vulnerability ID: CVE-2022-41082

Status: Confirmed

Status Updated: 2025-02-15 00:00 UTC

Exploited: Yes

Characteristics
Severity: 88.0
Timestamps
First Seen: 2023-10-13
Asserted: 2023-10-13
Last Seen: 2025-02-15
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Microsoft / Exchange | Class: email | Severity: High (CVSS 8.8) | IoT: no | In CISA KEV: yes | Honeypot connections on 2025-02-15: 803
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 190
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class email
7D Avg 79
Vendor Microsoft
30D Avg 72
90D Avg 66
Product Exchange
Cisa Kev yes
Connections 803
Observation Date 2025-02-15
Vulnerability Class CVSS
Vulnerability Score 8.8
Vulnerability Severity High
References
Created: 2026-07-01 07:16 UTC | Updated: 2026-07-01 13:14 UTC
KEVIntel
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7c9166ab-6a44-479d-b78c-cbe517ec26ae

Vulnerability ID: CVE-2022-41082

Status: Confirmed

Status Updated: 2022-09-30 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-09-30
Asserted: 2022-09-30
Scope
Notes: KEVIntel entry: Microsoft Exchange Server Remote Code Execution Vulnerability | Affected: Microsoft / Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2016 Cumulative Update 22, Microsoft Exchange Server 2019 Cumulative Update 11, Microsoft Exchange Server 2019 Cumulative Update 12, Microsoft Exchange Server 2016 Cumulative Update 23 | CVSS: 8.0 (HIGH) | EPSS: 0.99964 | 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 Microsoft Exchange Server Remote Code Execution Vulnerability
Vendor Microsoft
Product Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2016 Cumulative Update 22, Microsoft Exchange Server 2019 Cumulative Update 11, Microsoft Exchange Server 2019 Cumulative Update 12, Microsoft Exchange Server 2016 Cumulative Update 23
Added Date 2022-09-30T00:00:00.000Z
Cvss Score 8.0
Epss Score 0.99964
Cvss Severity HIGH
Epss Percentile 0.99976
Used In Malware yes
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 11:14 UTC | Updated: 2026-06-23 11:14 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.