Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2022-41082
CRITICALNVD 8.09.0▲Exploited in the wild
EchelonGraph scoreHIGH confidence
Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-09-30), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.0 retained for reference. Confidence: HIGH.
Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
- Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 8.0Exploit: cisa kev · ssvc active · kev ransomware · Metasploit · epss top5pct · epss high · public exploitExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.0
- EG Score
- 9.0(high)
- EG Risk
- 81(Attend)EG Risk 81/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity90% × 45%Exploitation100% × 40%Automatability0% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 100%
- EPSS %ILE
- 100%
- KEV
- ⚠ Exploited
Published
October 3, 2022
Last Modified
October 30, 2025
References (8)
- secure@microsofthttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41082
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/170066/Microsoft-Exchange-ProxyNotShell-Remote-Code-Execution.html
- af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41082
- af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/915563
- af854a3a-2127-422b-91ae-364da2661108https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/
- af854a3a-2127-422b-91ae-364da2661108https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-detection-script
- af854a3a-2127-422b-91ae-364da2661108https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-mitigation-script
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41082
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Frequently asked(6)
What is CVE-2022-41082?
CVE-2022-41082 is a critical vulnerability published on October 3, 2022. Microsoft Exchange Server Remote Code Execution Vulnerability
When was CVE-2022-41082 disclosed?
CVE-2022-41082 was first published in the National Vulnerability Database on October 3, 2022, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-41082 actively exploited?
Yes. CISA added CVE-2022-41082 to the Known Exploited Vulnerabilities catalog on September 30, 2022, affecting Microsoft Exchange Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-41082?
CVE-2022-41082 has a CVSS v3 base score of 8.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2022-41082?
CVE-2022-41082 affects Microsoft Exchange Server. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-41082?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-41082, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2022-41082
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