CVE-2022-41082
Confirmed PUBLISHEDMicrosoft Exchange Server Remote Code Execution Vulnerability
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Microsoft Exchange Server Remote Code Execution Vulnerability
- CVE Published
- Oct 03, 2022
- Exploitation Reported
- Sep 30, 2022
- CVSS
- 8.0 High
- EPSS
- 100.0%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft |
Microsoft Exchange Server 2013 Cumulative Update 23
|
15.00.0 to < 15.00.1497.044 |
Affected |
| Microsoft |
Microsoft Exchange Server 2016 Cumulative Update 22
|
15.0.0 to < 15.01.2375.037 |
Affected |
| Microsoft |
Microsoft Exchange Server 2019 Cumulative Update 11
|
15.02.0 to < 15.02.0986.036 |
Affected |
| Microsoft |
Microsoft Exchange Server 2019 Cumulative Update 12
|
15.02.0 to < 15.02.1118.020 |
Affected |
| Microsoft |
Microsoft Exchange Server 2016 Cumulative Update 23
|
15.01.0 to < 15.01.2507.016 |
Affected |
CVE References
- Microsoft Exchange Server Remote Code Execution Vulnerability msrc.microsoft.com · Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41082
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-09-30 00:00 UTC |
| The Shadowserver | 2026-05-31 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/exchange_proxynotshell_rce.rb | Apr 28, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2022-09-30 00:00:00 UTC · CISA
Used in malware
Recorded 2022-09-30 00:00:00 UTC · CISA
Proof of concept available
Recorded 2022-11-14 08:31:16 UTC · GitHub
Weaknesses (CWE)
-
Deserialization of Untrusted Data
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/exchange_proxynotshell_rce.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2023-09-03 20:55:20 UTC · 2 stars
github · Created 2022-12-22 09:35:26 UTC · 92 stars
PoC for the CVE-2022-41080 , CVE-2022-41082 and CVE-2022-41076 Vulnerabilities Affecting Microsoft Exchange Servers
github · Created 2022-11-14 08:31:16 UTC · 3 stars
Microsoft Exchange Server Remote Code Execution Vulnerability.
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC about 2 months ago00:00 UTC · about 2 months ago
KEV confirmed by The Shadowserver
Exploitation attested by an external source
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
08:31 UTC over 3 years ago08:31 UTC · over 3 years ago
Public PoC available
Public proof-of-concept code published
-
00:00 UTC almost 4 years ago00:00 UTC · almost 4 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC almost 4 years ago00:00 UTC · almost 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
00:00 UTC almost 4 years ago00:00 UTC · almost 4 years ago
First public exploitation report
Exploit observed in malware
-
00:00 UTC almost 4 years ago00:00 UTC · almost 4 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2022-41082
{
"cve_id": "CVE-2022-41082",
"title": "Microsoft Exchange Server Remote Code Execution Vulnerability",
"affected_vendor": "Microsoft",
"affected_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",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 8.0,
"epss_score": 0.99964,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}