OMENWAVE modelled vulnerability-chaining pathways

CVE-2024-4577

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.

9.8
CVSS Critical
100.0%
EPSS p100
YES
In CISA KEV
YES
Ransomware-linked

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
INITIAL_ACCESS
Requires
NONE access, NETWORK vector
Grants
USER access
Capabilities
code execution
Model confidence
high · CVSS 3.1
Top plausible next hops
CVE-2021-22204INITIAL_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malici…

CVE-2021-3156INITIAL_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudo…

CVE-2022-0847INITIAL_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_…

CVE-2025-6218INITIAL_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

RARLAB WinRAR Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affect…

CVE-2018-4878INITIAL_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Pri…

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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-2024-4577