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PatchSiren cyber security CVE debrief

CVE-2022-41082 Microsoft CVE debrief

CVE-2022-41082 is a Microsoft Exchange Server remote code execution vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2022-09-30. CISA marked the issue as actively exploited and noted known ransomware campaign use, so defenders should treat this as an urgent remediation item.

Vendor
Microsoft
Product
Exchange Server
CVSS
HIGH 8
CISA KEV
Listed
Original CVE published
2022-09-30
Original CVE updated
2022-09-30
Advisory published
2022-09-30
Advisory updated
2022-09-30

Who should care

Organizations running Microsoft Exchange Server, especially teams responsible for patching, exposure management, and incident response.

Technical summary

The supplied records identify the issue as a remote code execution vulnerability in Microsoft Exchange Server. The KEV entry does not provide exploit mechanics, affected component details, or a CVSS score in the supplied corpus, so operational guidance should rely on Microsoft’s remediation instructions and CISA’s KEV listing.

Defensive priority

High

Recommended defensive actions

  • Apply Microsoft updates per vendor instructions as soon as possible.
  • Track all Microsoft Exchange Server instances in asset inventories and remediation queues.
  • Prioritize business-critical Exchange Server systems and any instances with broader network exposure.
  • Review security logs and host activity for suspicious behavior related to Exchange Server.
  • If immediate patching is not possible, use emergency change processes and document exposure until remediation is complete.

Evidence notes

CISA’s KEV record identifies Microsoft Exchange Server RCE, dateAdded 2022-09-30, dueDate 2022-10-21, and known ransomware campaign use as 'Known'. The record’s notes point to Microsoft customer guidance and the NVD entry.

Sources and references

Verified primary and authoritative sources

  • CVE-2022-41082 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2022-41082

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2022-41082 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2022-41082

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.