CVE-2022-41040
SSRF in Microsoft Exchange Server 2013 … 2019
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2022-41040 is a high-severity SSRF (CWE-918) vulnerability in Microsoft Exchange Server. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique LSASS Memory (T1003.001); ranked in the top 0.0% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2022-41040 is an elevation of privilege vulnerability affecting Microsoft Exchange Server and is tracked under CWE-918 with a CVSS 3.1 score of 8.8 reflecting network attack vector, low attack complexity, low required privileges, and no user interaction. Successful exploitation can produce high impact across confidentiality, integrity, and availability on the affected server.
An authenticated attacker with low privileges can exploit the flaw remotely to elevate privileges and obtain unauthorized access or control within the Exchange environment. The vulnerability has been publicly associated with ProxyNotShell attack chains that combine it with related issues to achieve remote code execution.
Microsoft Security Response Center advisories and the November 2022 Patch Tuesday release direct administrators to apply the vendor-supplied security updates for Exchange Server. Additional guidance appears in the coordinated CERT and vendor portals referenced for the CVE.
The EPSS score reached a peak of 0.9685 and remains at 0.9415, indicating sustained exploitation interest after disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-44285
Vulnerability Data
Microsoft Exchange Server Elevation of Privilege Vulnerability
- CWE(s)
- KEV Date Added
- 30 September 2022
Related Threats
Threat-Actor AttributionAI
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.
Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.
Validates server-side URLs and resource references to block SSRF attempts.
Detects server-side request forgery through monitoring of unexpected outbound connections.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Runtime monitoring of web applications and services can detect anomalous outbound requests indicative of SSRF.
Vulnerability identification processes can discover and record SSRF flaws in web applications.
Network segmentation and egress controls can limit the damage from successful SSRF requests.
Secure development practices directly include input validation and destination allow-listing that prevent SSRF.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.