OMENWAVE modelled vulnerability-chaining pathways

CVE-2026-42897

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

6.1
CVSS Medium
70.7%
EPSS p99
YES
In CISA KEV

Data as of 2 Nov 2026 · NVD, CISA KEV, EPSS

Why chaining, at machine speed

Defenders still triage vulnerabilities one CVE at a time, while increasingly automated attackers combine them at machine speed. Omenwave models the plausible pathways by which this CVE could be chained with others — surfacing them for research and awareness, with evidence for each step.

Modelled capability profile
Kill-chain stage
CRED_ACCESS
Requires
NONE access, NETWORK vector, user interaction
Grants
NONE access
Capabilities
credential accessinformation disclosuredata tampering
Model confidence
high · CVSS 3.1
Top plausible next hops
CVE-2022-41040CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source discloses credential material, which can satisfy the destination's authentication requirement.

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVE-2020-0688CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source discloses credential material, which can satisfy the destination's authentication requirement.

A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka 'Micros…

CVE-2022-41082CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source discloses credential material, which can satisfy the destination's authentication requirement.

Microsoft Exchange Server Remote Code Execution Vulnerability

CVE-2023-21529CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source discloses credential material, which can satisfy the destination's authentication requirement.

Microsoft Exchange Server Remote Code Execution Vulnerability

CVE-2021-42321CRED_ACCESS → EXECUTIONmedium plausibility · KEV

The source discloses credential material, which can satisfy the destination's authentication requirement.

Microsoft Exchange Server Remote Code Execution Vulnerability

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Modelled plausible chaining potential derived from public CVE metadata (CVSS, CWE, CPE). Not a confirmed real-world exploit chain and contains no exploitation detail. For research and awareness only.

Methodology · Interactive explorer · JSON: /cve/CVE-2026-42897