{"identifier":"CVE-2022-41040","cve":{"id":"CVE-2022-41040","description":"Microsoft Exchange Server Elevation of Privilege Vulnerability","published":"2022-10-03T01:15:08.753000+00:00","modified":"2026-06-17T05:02:28.500000+00:00","status":"Analyzed","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_12:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""}],"weaknesses":["CWE-918"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41040","source":"secure@microsoft.com","tags":["Patch","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/170066/Microsoft-Exchange-ProxyNotShell-Remote-Code-Execution.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41040","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Patch","Vendor Advisory"]},{"url":"https://www.kb.cert.org/vuls/id/915563","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","US Government Resource"]},{"url":"https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41040","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}],"kev":{"cveID":"CVE-2022-41040","vendorProject":"Microsoft","product":"Exchange Server","vulnerabilityName":"Microsoft Exchange Server Server-Side Request Forgery Vulnerability","dateAdded":"2022-09-30","shortDescription":"Microsoft Exchange Server allows for server-side request forgery. Dubbed \"ProxyNotShell,\" this vulnerability is chainable with CVE-2022-41082 which allows for remote code execution.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-10-21","knownRansomwareCampaignUse":"Known","forensicTriage":"No","notes":"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-2022-41040","cwes":["CWE-918"]},"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2024-02-23T21:11:09.910371Z","id":"CVE-2022-41040","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*","matchCriteriaId":"DA166F2A-D83B-4D50-AD0B-668D813E0585"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*","matchCriteriaId":"449CE85B-E599-44D3-A7C1-5133F6A55E86"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_23:*:*:*:*:*:*","matchCriteriaId":"FF76AEDA-E574-40ED-B64F-8FDEF8CAC802"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*","matchCriteriaId":"435343A4-BF10-461A-ABF2-D511A5FBDA75"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_12:*:*:*:*:*:*","matchCriteriaId":"B23C8E3E-5243-4DA6-B9AA-F6053084B55E"}]}]}],"source":"nvd","retrieved_at":"2026-10-28T16:19:12.579854+00:00","exploited":true,"kev_stale":false,"products":["microsoft / exchange server"],"priority":{"label":"Known exploitation: prioritize review","reasons":["CISA KEV lists real-world exploitation."]},"epss":{"probability":0.99956,"percentile":0.99974,"date":"2026-10-28","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"msrc.microsoft.com","source_url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41040","investigate_url":"https://investigate.aeglixmind.com/#msrc.microsoft.com"},{"domain":"packetstormsecurity.com","source_url":"http://packetstormsecurity.com/files/170066/Microsoft-Exchange-ProxyNotShell-Remote-Code-Execution.html","investigate_url":"https://investigate.aeglixmind.com/#packetstormsecurity.com"},{"domain":"portal.msrc.microsoft.com","source_url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41040","investigate_url":"https://investigate.aeglixmind.com/#portal.msrc.microsoft.com"},{"domain":"www.kb.cert.org","source_url":"https://www.kb.cert.org/vuls/id/915563","investigate_url":"https://investigate.aeglixmind.com/#www.kb.cert.org"},{"domain":"www.secpod.com","source_url":"https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/","investigate_url":"https://investigate.aeglixmind.com/#www.secpod.com"},{"domain":"www.cisa.gov","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41040","investigate_url":"https://investigate.aeglixmind.com/#www.cisa.gov"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2022-41040","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2022-41040","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2022-41040","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}